ADU Permit Fee Calculators by City

Official Akron and Summit County sources show that ADU-related work will generally need standard building, zoning, and utility inspections/permits, but the exact ADU fee schedule was not clearly published in the searched results. The most specific official fee language found is a Summit County building permit schedule that includes a residential accessory-structure application fee, and Akron’s city pages direct applicants to Summit County Building Standards for certain permits and inspections.

Albany’s official ADU permit packet confirms that the permit fee is project-specific and that applicants must use the city’s fee schedule or contact the Building Department for calculation. I found no official city page in the provided results with a published ADU-specific fee table, so exact permit, plan-check, inspection, and utility charges should be verified directly with the City of Albany and local utilities.

City sources confirm ADUs/casitas are allowed in Albuquerque and specify size and setback rules, but the provided results do not include an official fee schedule. The city directs applicants to ABQ-PLAN and the Building Safety counter for permit processing, so exact ADU permit, plan check, inspection, and utility connection fees must be verified directly with the city and utility authority.

Allentown’s official materials confirm that permit-related fees exist and that the city uses a state-mandated Uniform Construction Code permit fee, but the available public sources do not clearly publish a standalone ADU fee schedule. For an ADU, the city appears to require standard building/zoning review and permit processing, and any exact dollar amounts should be verified directly with the permitting office.

Anaheim’s official fee schedule and miscellaneous-fees pages indicate the city maintains a fee schedule, but the provided search results do not expose an exact ADU-specific permit/plan-check schedule. California ADUs may qualify for impact-fee relief for smaller units, and that statewide baseline should be verified against Anaheim’s current ordinance and fee tables.

Anchorage has a municipality-run pre-approved ADU program, but the official page does not publish a single citywide ADU fee schedule. The best available official source says construction permits are still required and that property-specific utility or other reviews may also apply; outside sources report Anchorage ADU permit costs are often in the $1,000 to $3,000 range, but that exact figure should be verified with the municipality.

Ann Arbor allows ADUs by zoning policy, but the city’s published fee page only clearly confirms inspection charges and does not provide a complete ADU-specific permit fee schedule in the retrieved sources. The most reliable city source indicates inspections are billed after completion, at $35 per inspection for inspections added to an open permit, while exact building, plan review, and utility connection fees still need verification from the city’s current fee tables or direct staff confirmation.

Antioch’s official ADU FAQ says ADUs under 750 square feet are exempt from city development impact fees except school district fees, while larger ADUs pay proportional impact fees tied to the primary dwelling size. City department fees are based on project valuation, and Antioch gives an example of about $4,050 in department fees for a 515-square-foot ADU valued at $200,000; exact current fee tables should still be verified with the city and school district.[2][10]

Appleton allows accessory dwelling units and publishes a building permit/inspection fee schedule, but the available city ADU materials do not clearly publish a standalone ADU fee table. The best-supported fees are the city’s standard building permit and plan review charges, while any ADU-specific utility, school, or impact fees need direct verification with the city and local utilities.

Arlington appears to allow ADUs, but the clearest official fee evidence is its general building/plan-review fee schedule rather than an ADU-specific schedule. The city fee schedule is valuation-based, and I did not find an official ADU impact-fee or school-fee schedule in the provided results.

Asheville allows ADUs and requires permits through the city Development Services Department, but the official fee schedule was not fully accessible in the provided results. The city’s own ADU page confirms permitting and inspections are required, while Buncombe County’s fee schedule is relevant for county-level permits; exact ADU permit and connection charges still need verification from the city fee schedule and utility providers.

Atlanta’s official fee page shows separate permit charges for small residential projects, including mechanical/electrical/plumbing minimum fees and a per-square-foot fee category for one- and two-family residence basement or attic build-outs; however, the city page does not clearly publish a dedicated ADU fee schedule, so exact ADU-specific totals should be verified with permitting staff.[8]

Atlantic City appears to charge standard local land-use application and review fees through its zoning/land-use code, but the available official source is not a dedicated ADU fee schedule. I found no clear Atlantic City ADU-specific impact fee, school fee, or utility connection fee schedule in the provided official sources, so those items should be verified directly with the City and utilities.

Augusta’s official permit fee schedule shows residential building permits are charged at $0.06 per square foot under roof, with separate flat fees for electrical, mechanical, plumbing, and inspection items. The city also charges plan review fees at 66% of the permit amount for general, electrical, mechanical, and plumbing permits, while one- and two-family dwellings are exempt from plan review fees; ADU-specific fees were not found, so final totals should be verified with Building Inspections and Planning & Development.

Aurora requires ADU-related building permits and uses city land-development and permitting fee schedules, but the exact ADU fee amounts were not clearly exposed in the available official pages. The most reliable official sources found are the City of Aurora fees page and permit fee calculator, plus Colorado/DOLA guidance on statewide ADU rules and Arapahoe County guidance for properties in unincorporated county areas.

Austin allows additional dwelling units and requires a building permit and separate address, but the provided official source does not publish a clear ADU fee schedule. The only numeric fee information in the search results is from non-official cost guides, so exact permit and pre-development fees should be verified directly with the City of Austin and relevant utilities.

Avondale treats an ADU as a separate or new dwelling unit for utility service purposes, so water, sewer, or power fees may be assessed as a separate unit. The city’s official development fee documents confirm revised development impact fees are in effect, but the provided results do not expose a clean ADU-specific fee schedule, so exact charge amounts need verification from the city fee tables and utility schedules.

Bakersfield allows ADUs, and the clearest official city fee found is a $500 ADU application fee in the proposed 2024-25 master fee schedule. California’s ADU rules also limit certain local impact fees for smaller ADUs, but Bakersfield’s exact building, plan-check, utility, and school fee treatment should be verified against current city and district fee schedules.

Baltimore appears to allow ADUs, but the fee schedule is not clearly published in the search results. Available secondary sources indicate permit fees are based on construction valuation and that ADU projects likely face no dedicated impact or school fees, but exact municipal fee amounts should be verified with Baltimore City DHCD and the city permit system.

Baton Rouge does not appear to have a statewide ADU fee schedule; ADUs are handled through local residential permitting, and the official city fee page shows a residential new building permit fee of $0.80 per square foot with a $125 minimum, plus a $25 technology fee and other possible review/inspection charges. The city’s residential permit guidance also says accessory structures over 200 square feet require a permit, but the exact ADU-specific review path and any additional planning fees should be verified with the city/parish before filing.[3][7][10]

Bonita Springs has an official city fee schedule and impact-fee ordinance, but the search results do not expose a clearly readable ADU-specific fee table. The most reliable next step is to verify permit, plan-review, and utility connection charges directly in the city’s current fee schedule and Lee County utility/impact-fee materials.

Boston requires building permits for ADUs through Inspectional Services, and some projects may also need Zoning Board of Appeal review. The available search results did not provide an official Boston fee schedule for ADU-specific permit, plan review, or utility charges, so exact fees should be verified directly with the city and relevant utilities.

Bremerton allows ADUs citywide and provides free pre-approved ADU plan sets for use within city limits. The city page confirms no parking is required and gives size and design standards, but the available results do not provide a clear official Bremerton fee schedule, so permit and pre-development charges should be verified directly with the city permit portal and any utility providers.

Bridgeport publishes a zoning fee schedule that appears to cover ADU-related zoning compliance under its residential dwellings categories, but I did not find a city-verified ADU-specific fee schedule or a separate set of permit fees for accessory dwelling units. State building-permit fee rules apply, and the exact total should be verified with the City of Bridgeport Zoning and Building Departments before filing.

Bronx ADUs are covered by New York City and New York State programs rather than a borough-specific fee schedule. The clearest official fee found is a $200 non-refundable application fee for the NYC Plus One ADU program; other permitting and review costs need verification through NYC DOB/HPD and the project’s utility providers.

Brooklyn is in New York City, so ADU-related fees are generally set by NYC DOB/HPD rules rather than borough-specific schedules. The clearest official fee found is the Plus One ADU program’s $200 non-refundable application fee; other permit, plan review, inspection, and utility costs were not stated clearly in the official sources reviewed and should be verified directly with NYC agencies.

Brownsville has official city fee documents, but the publicly surfaced sources do not clearly isolate ADU-specific permit or pre-development fees. The most relevant city sources point to a master fee schedule, a housing code inspection fee, and Brownsville PUB water/wastewater impact fees that may apply depending on utility service and project scope.

Buffalo has a city fee schedule for building permits, but the publicly available result set does not expose a clear ADU-specific fee table. The most relevant official source confirms building permit fees exist and directs applicants to the Permit Office for details, while a secondary guide suggests ADU permit fees are commonly calculated from project value and may range widely; exact ADU fee amounts should be verified with the city.[4][1]

Canton publishes a building fee schedule that appears to cover one-, two-, and three-family dwellings, which is the most relevant official fee source for an ADU-style project; the city also charges a separate plans examination fee and inspection-related fees. A city rental registration fee exists, but it is not clearly an ADU permit fee and should be verified for relevance to the specific property use.

Cape Coral has an official permitting-fees page and fee schedules, but the search results do not expose the underlying ADU-specific dollar amounts. Available sources indicate that ADU costs likely include building permit fees, plan review, impact fees, and utility connection fees, but each must be verified against the current city and utility schedules before use.

Chandler allows ADUs, but the fee details in the available official sources are not itemized enough to safely report exact ADU permit or development fee amounts. The City of Chandler publishes system development fees, but the accessible result does not expose the specific ADU charge schedule, so the safest finding is that fees must be verified in the city’s fee ordinance/schedule and by the building permit reviewer.

Charleston appears to allow ADUs, but the official city ADU page in the provided results does not expose a clear fee schedule. The best-supported fee finding is that Charleston likely uses standard building permit and plan review processes, while impact and school fees were not clearly documented in the search results.

Charlotte requires both a City land development permit and a Mecklenburg County building permit for ADUs, and the City’s ADU guidebook says additional Urban Forestry and Stormwater reviews may apply. The official City ADU page does not publish a single all-in ADU fee schedule, so exact totals must be verified through the City/County permit portals or staff before filing.

Chattanooga allows ADUs on qualifying single-family lots, but the exact city fee schedule for ADU permits and related pre-development charges was not clearly published in the sources reviewed. A secondary source reports an estimated total permit-fee range of $1,200–$5,500, but this should be verified directly with Chattanooga Development Resources before use.

Chesapeake appears to allow ADUs under local zoning rules, and permit fees are not published as a simple ADU-specific flat fee. The city’s available fee page shows development review and plan-review fee categories, while secondary reporting indicates Chesapeake bases permit charges on estimated construction value, so exact ADU permit costs need verification with the city before filing.

Chicago’s official ADU program page confirms ADUs are allowed under city ordinance, but the city page does not publish a clear ADU-specific fee schedule; the best official lead is that projects go through the standard Department of Buildings permit process, and exact permit, review, and utility-related charges must be verified with the relevant city departments.

Chula Vista states that ADUs under 750 square feet are exempt from development impact and in-lieu fees, while ADUs 750 square feet and larger are charged proportionately to the primary residence on a square-footage basis. The city’s 2024 fee resolution shows ADU permit-related charges, but the exact live fee schedule should be verified before filing.

Cincinnati allows ADUs, but the official city pages do not publish a single ADU-specific fee schedule. Available city sources indicate registration through the zoning portal and separate building/zoning permit review, while city planning fees show some related application charges and a small portal processing fee; exact ADU permit, inspection, and utility connection costs need verification.

Cleveland appears to allow ADUs, but the most reliable fee information available from the city is a general permit fee schedule rather than an ADU-specific fee sheet. The city’s schedule shows a residential plan examination fee, a permit fee framework that depends on valuation and project type, and a state surcharge, while secondary sources suggest no dedicated impact fee and no school fee for typical ADU conversions.

Colorado Springs allows ADUs on single-family detached dwelling lots, and the ADU is permitted through a building permit handled by Pikes Peak Regional Building Department. The most reliable public fee source found is PPRBD’s building permit valuation schedule; exact ADU-specific total fees, plan check charges, and any utility connection costs still need project-by-project verification.

Columbia appears to charge standard residential plan review and building permit fees for accessory buildings/ADUs, but the exact total depends on project valuation and scope. The most directly supported city fee items found are plan review, permit fees by valuation, and a specific garage/accessory building permit fee; utility and impact fees were not clearly documented in the available official materials.

Columbus appears to allow ADUs and uses its general development fee schedule for permits, but the exact ADU-specific fee total depends on project valuation, scope, and whether separate utility connections are needed. The most reliable fee evidence found is the city’s 2026 combined development-related fee schedule, which shows permit fee categories for new construction, additions, and accessory structures, but it does not provide a single ADU-only fee.

Publicly available city fee schedules show Columbus has zoning-related fees and a permit-fee schedule that appears to cover utility meter and related permit items, but I did not find a city-issued ADU-specific fee schedule. ADU project costs and permit fees therefore need direct verification with Columbus Inspections & Code / Development Services.

Concord publishes a general city fee page and an ADU page, but the exact current ADU fee schedule was not available in the search results. California’s ADU impact-fee baseline applies, and Concord has a city PDF for ADU engineering fees, but the fee amounts themselves need verification from the official documents.

Concord publishes an official planning fee schedule and permits portal, but the accessible search result does not expose the underlying line-item ADU permit amounts. A secondary source suggests ADU permit costs in Concord are commonly around $1,000 to $2,500, but that figure should be verified against the city fee schedule before use.

Corpus Christi publishes development service fees in its code and fee schedule, but the publicly available sources here do not clearly expose an ADU-specific fee table. Residential permits are priced by square footage, so ADU permit costs likely depend on the project’s size and permit type and should be verified in the city fee schedule and code.

Dallas appears to use a permit fee schedule tied to project valuation and scope, but the public material found here does not clearly isolate a specific ADU-only fee. The most reliable city source located confirms the city has a permitting and inspections fee schedule, while a Dallas permit guide suggests ADU permit fees are typically value-based and may fall within a broad range that still needs verification with the city.

Davenport appears to require standard building and trade permits for ADU-related work, but the exact ADU-specific fee package is not clearly published in the search results. The clearest directly stated local fee found is a $100 sewer connection fee for one-family or two-family residences; other permit fees need verification from the city fee schedule and permit staff.

Dayton appears to charge residential building permit fees based on project valuation or construction method, plus a 1% Ohio state surcharge on residential permit fees and separate inspection/CUO fees. I did not find an official Dayton ADU-specific fee schedule, so ADU costs likely need to be estimated from the residential permit fee schedule and verified with the city before filing.

Denton allows ADUs subject to zoning and building permit review, and the city says permit fees are at least a $100 minimum based on square footage, with additional charges possible for electric, plumbing, HVAC, water impact, sewer impact, and water meter fees.

Denver allows ADUs citywide, but the exact city fee schedule for ADU permits, plan review, utility taps, and any school-related charges was not clearly available in the provided official sources, so the fee items below are marked for verification. The most reliable official source here confirms the citywide ADU zoning change, while Colorado guidance notes that local ADU fee programs may involve permit, impact, school district, and utility fees.[10][7]

Publicly available official fee schedules for Des Moines, Iowa ADUs were not located in the provided results. Secondary sources indicate ADUs are allowed and that permit costs are typically handled through the city permit center, with no clear evidence of development impact fees; exact amounts should be verified directly with the City of Des Moines.

Detroit’s official fee schedule shows a valuation-based residential building permit structure, plus separate flat fees for plan review and some pre-development services. For a typical ADU, the exact total depends on declared project valuation and the mix of residential building, trade, and any advisory or variance-related permits that apply; the official schedule should be verified for the current line items before budgeting.

Durham allows ADUs by right in many residential districts, but the exact fee schedule for permits, plan review, and utility connections was not clearly available from the provided official sources. The most reliable city source found is the ADU Loan Pilot Program document, which is about financing support rather than permit fees, so fee amounts should be verified directly with City of Durham Inspections and Durham utilities.

Eugene allows ADUs and offers a pre-approved ADU program, but the available search results do not provide a current official fee schedule with exact permit, impact, or utility charges. The best-supported official takeaway is that pre-approved plans can reduce pre-development costs, while exact ADU fees still need verification with the City and relevant utility/school districts.[6][7]

Fayetteville appears to charge standard residential plan review, permit, inspection, and utility-related fees for ADU projects, but the official fee schedule excerpt available in search results does not clearly identify a standalone ADU fee. North Carolina law requires ADU permit fees not exceed comparable single-family home permit costs, and local governments cannot require separate utility connections as a condition of ADU approval.[3][2]

Fayetteville’s official fee schedule shows standard residential building permit fees are based on valuation, with a 50% plan review fee and a minimum permit fee of $55. Arkansas’s 2025 ADU law also caps ADU application fees at $250 and limits local barriers, but Fayetteville’s exact ADU-specific fee line item was not clearly isolated in the available official fee table.

Flint’s official fee schedule confirms that zoning, building, and inspection-related fees are charged through the city’s master fee schedule, but the available official material in the search results does not clearly expose a specific ADU fee line item. The safest current result is that ADU-related permitting costs must be verified case-by-case with Flint Building Safety & Inspections and Zoning using the city fee schedule process.

Fontana appears to follow California ADU rules, but the official city fee schedule needed to verify exact permit and impact fees was not available in the provided results. California’s ADU impact-fee baseline applies: impact fees generally cannot be charged for ADUs under 750 sq ft, and for larger ADUs fees must be proportionate to the main dwelling’s square footage relative to the primary residence.[2][8]

Fort Collins publishes an ADU page that names a mandatory Basic Development Review fee of $6,925 and says total ADU-related fees are often $20,000-$25,000, with utility, transportation, and building-permit charges still needing project-specific verification. A city grant proposal in 2026 may affect future fee waivers, but it was not yet a usable program in the provided sources.

Fort Wayne now has an ADU zoning allowance, but the available official fee information is from Allen County’s planning fee schedule rather than a dedicated ADU fee sheet. The clearest documented charge relevant to an ADU is a $500 public-hearing fee reported in local coverage of the ordinance, while county permit fees suggest accessory-structure/improvement-location permitting may range from $70 to $120 depending on size and scope.

Fort Worth allows ADUs in at least some residential zoning districts, but the fee schedule for a specific ADU is not clearly published in the search results. The most reliable official source found is the city development fee schedule, which shows general permit/application and technology fees, but the exact ADU total will depend on project valuation, permit type, and any utility-related charges that must be verified with the city and utility providers.

Fremont’s official ADU page confirms a separate permit is required for the ADU, but the public page in the provided results does not expose a full fee schedule. For California ADUs, impact fees are waived for units under 750 square feet under state law, and larger ADUs may be subject to city-defined fees that must be verified directly with Fremont.

Fresno appears to charge standard building permit and plan-check fees for ADUs, with school fees handled case-by-case by the relevant school district and California’s ADU impact-fee thresholds applying statewide. The city’s published planning fee schedule indicates ADUs under 750 square feet are not charged development impact fees, while ADUs over 750 square feet pay the multifamily residential rate.

Garland’s published building-permit schedule shows valuation-based permit fees for new construction and additions, which is the closest official fee structure likely to apply to an ADU. I did not find a Garland-specific ADU fee table, so exact ADU total cost should be verified with Building Inspections and any applicable utility/inspection fees.[3][7]

Gilbert publishes a system development fee program and building-permit guidance, but the search results did not surface an official ADU-specific fee schedule. The available official material confirms that impact/system development fees apply to new development, while exact ADU permit, plan-check, and utility connection fees should be verified with Gilbert Development Services and the relevant utilities.

Glendale, Arizona publishes an ADU fee estimate sheet showing a mix of review fees, permit fees, and impact fees for a 1,000-square-foot detached or attached ADU. The city states that detached ADUs pay single-family impact fees, attached ADUs pay multifamily impact fees, and streets impact fees do not apply because state law prohibits requiring street improvements for ADUs.

Grand Rapids allows ADUs subject to local zoning and planning review, but the official city materials available here do not publish a clear ADU-specific fee schedule. The most reliable next step is to confirm building permit, planning review, and utility connection charges directly with the City Development Center and water/sewer staff.

Greensboro allows ADUs in residential districts and requires a residential building permit, but the official fee schedule for ADU-specific permitting and any utility or impact charges was not found in the provided results.[5] Available third-party sources suggest permit and plan-review costs can vary widely by project valuation, so exact fees should be verified with the City of Greensboro and local utilities.[1][3]

Greenville appears to allow ADUs, but the fee details available in the provided results are mostly secondary estimates rather than official fee schedules. The most defensible finding is that building permit fees are based on construction valuation, while impact fees and school fees were reported as none/N/A in non-official summaries; official city fee and permit pages should be used to verify exact ADU costs.

Gulfport appears to have published municipal building and utility fee schedules, but the available search results do not provide a complete, current ADU-specific fee schedule. The clearest verified charge relevant to a new dwelling connection is the city water tap fee of $700 per unit; other permit and review fees should be verified directly with the city before filing.

Harrisburg appears to charge a residential application fee and uses a city fee schedule for building-related permits, but the available sources do not clearly expose a dedicated ADU fee schedule. Exact ADU-specific permit, plan review, inspection, and utility connection fees should be verified with the City of Harrisburg and relevant utilities/school district before budgeting.

Hartford allows ADUs under Connecticut Public Act 21-29, but the search results do not provide an official Hartford fee schedule. Available non-official sources suggest a plan check fee and a building permit fee based on construction value, with no impact or school fees identified; these amounts should be verified directly with Hartford Development Services.

Henderson’s official fee pages show a current development-services fee schedule, but the public results available here do not expose a specific ADU permit line item or the full set of project-specific impact fees. The most reliable next step is to verify the building permit, plan review, and any utility/connection charges directly in Henderson’s permit fee schedules and Clark County utility sources.

Hialeah is in Miami-Dade County, where ADUs are allowed under county zoning in limited single-family districts, but I did not find an official Hialeah city ADU fee schedule. The most defensible city-specific fee source found is Hialeah Ordinance No. 2021-059, which confirms the city uses impact fees, but the ordinance excerpt available here does not show exact ADU-related amounts.

Hickory’s official public pages confirm that accessory structures need zoning review and, in some cases, a building permit, but the available sources do not provide an ADU-specific fee schedule. Exact permit, impact, utility, school, and inspection fees should be verified directly with the city’s Permit Center and Planning and Development Division.

Houston appears to allow ADUs, but the exact permit and pre-development fee schedule is not clearly stated in the official materials surfaced here. The most reliable takeaway is that Houston’s permitting framework uses separate building/trade permits, and outside sources indicate no impact fees or school fees for ADUs, but those fee claims should be verified directly with Houston Permitting Center and Public Works.

Official Indianapolis fee schedules are difficult to isolate from public search results; the city’s permit-fee page indicates permit and licensing fees exist, but the specific ADU fee schedule was not surfaced in the provided sources. Secondary guides say Indianapolis ADU permit fees are typically value-based and may range widely, but those figures should be verified directly with the city before budgeting.

Indio follows California ADU rules and its local ordinance states that ADUs under 750 square feet are exempt from impact fees. Exact permit, plan check, inspection, and utility fee amounts were not clearly published in the provided official materials and should be verified with the city fee schedule or building division.

Irvine allows ADUs, but the exact city fee schedule was not available in the provided results. California’s ADU law limits or exempts certain impact fees, especially for ADUs under 750 square feet, and Orange County offers pre-approved ADU plans that may reduce plan-check effort rather than city fees.

Irving’s official fee pages point to a consolidated city fee schedule and an online permit portal, but the search results do not expose a clear ADU-specific fee table. The most defensible finding is that ADU permitting appears to follow standard city building/plan-review fees, which must be verified in the current Consolidated Fee Schedule and by Development Services.

Jackson’s published permit fee schedule includes general building permit charges that would likely apply to an ADU, but the city sources reviewed do not clearly publish a separate ADU fee schedule or impact-fee schedule. Mississippi is generally described as not especially ADU-friendly, so Jackson-specific eligibility and utility requirements should be verified before budgeting fees.

Jacksonville appears to allow ADUs under its 2022 ordinance, but the provided results do not include an official city fee schedule with verifiable ADU-specific permit, plan review, or impact-fee amounts. The only official city source identified is the City Fees page, which should be checked for current building permit and development review charges; the exact ADU fee total remains unverified from the available results.

Publicly accessible official fee schedules for Jersey City ADUs were not found in the provided results, so the fee data below is limited to secondary-source estimates and the city’s official zoning/contact page for verification. ADUs appear to be allowed in Jersey City, but exact permit, plan review, and any utility or redevelopment-related charges should be confirmed directly with the City.

Kalamazoo’s city documents show a pre-approved housing plan process, but the available official pages in the search results do not publish a single ADU-specific city fee schedule. Nearby township/municipal ADU materials indicate ADU-related permits commonly require a planning/zoning fee and, for some projects, additional sewer or review fees that must be verified for the exact jurisdiction and utility district.

Kansas City’s official fee schedule is published in the city’s Building Code fee schedule, but the extracted search result does not expose specific ADU line-item amounts. The best-supported finding is that permit and plan review fees are governed by Article 1, Section 18, and must be verified directly in the city fee schedule before budgeting an ADU project.

Kennewick publishes a master fee schedule and an online permit fee estimator, but the search results do not expose a clean ADU-specific fee line item. Washington state law also limits ADU impact fees to no more than 50% of the impact fees charged for the principal unit, so local verification is still needed for any Kennewick ADU project.

Killeen’s official fee schedule is the best source for ADU-related permit costs, but the publicly available excerpts do not clearly isolate a separate ADU fee. The city’s FY 2025 proposed fee schedule and FY 2024 adopted fee schedule indicate permit fees vary by category and can range from low minimums to higher project-based amounts, so the exact ADU total still needs verification with Building Inspections.[1][5]

Kissimmee-specific ADU fee schedules were not clearly published in the search results, but Osceola County’s building permit fee page provides the most relevant official fee framework for permits processed locally, while secondary sources indicate ADU permit totals in Kissimmee are commonly estimated at about $500-$5,000 depending on scope and valuation.[9][1]

Knoxville appears to allow ADUs, but the public results provided do not include an official City fee schedule for ADU-specific permits, plan review, or utility connection charges. The safest current read is that permit-related costs exist and utility connection fees may apply, but exact ADU fees should be verified directly with the City of Knoxville Plans Review & Permits office and Knoxville Utilities Board.

Lafayette appears to require an ADU application/permit process plus standard building permit fees, but the official public fee schedule does not clearly isolate a dedicated ADU fee. The most reliable official source found is the Lafayette Consolidated Government fee schedule, which shows valuation-based residential permit fees and a separate under-500-sq-ft residential fee category, but the exact ADU applicability must be verified with the city.

Lakeland has a specific ADU compatibility review fee of $100, and the city’s impact fee schedule shows a low ADU-related burden if transportation fees are exempted; however, the exact ADU impact-fee total should be verified with the city because the official impact-fee page is formatted as a rate table and does not clearly isolate ADUs in the search snippet.

Lancaster’s official city fee schedule shows standard building permit charges that would apply to ADU work, including residential new construction at $0.45 per square foot with a $150 minimum and renovations/alterations based on project valuation tiers. The city also charges a mandatory state education fee of $4.50, but I did not find an ADU-specific city fee or a clear utility/school impact fee schedule tied to ADUs in the provided official sources.

Lancaster appears to follow California’s ADU fee framework, but the exact local fee schedule was not available in the provided results. A city ADU assistance page confirms the city has an ADU program, while California law still requires fee treatment to be verified against current city fee schedules and utility/school district sources.

Lansing allows ADUs in most residential zoning districts, but the available official city fee schedule does not show a separate ADU fee. The city appears to charge standard building permit, application/zoning review, and inspection fees based on valuation and permit type, so an ADU’s total fees must be computed from the project details and verified with the city.

Laredo appears to charge permit fees for accessory structures and additions under its published building permit fee schedule, but I did not find a dedicated ADU fee schedule. The most relevant official source is the City of Laredo permit fee page; Webb County also publishes a separate development utility application fee for county-level residential submittals, which may or may not apply depending on location and utility context.

Las Vegas has an official building permit fee estimator that charges either 1% of construction valuation or $1,000 per dwelling unit for single-family dwelling units, whichever is less, plus a separate traffic impact fee of $195 per single dwelling. ADU-specific utility connection, school, or other impact fees were not clearly identified in the official city sources provided, so those items should be verified case-by-case.

Lexington-Fayette appears to allow ADUs, but the official city pages provided here do not publish a clear fee schedule for ADU-specific permits. The most reliable next step is to verify current building permit, plan review, and any utility connection charges directly with LFUCG and the relevant utilities.

Lincoln allows ADUs under its zoning code, but the official sources surfaced here do not provide a clear ADU-specific fee schedule. The city does publish general planning application fees, and permit costs appear to depend on valuation and separate trade permits, so exact ADU fees should be verified with Lincoln Planning and Development Services.

Little Rock appears to allow ADUs under Arkansas' statewide ADU framework, but the exact Little Rock ADU fee schedule was not clearly available in the provided official sources. The most reliable city document found is a general building fee ordinance that uses valuation-based permit fees, so ADU costs likely depend on construction value and related review/inspection charges rather than a single published ADU-specific fee.

Long Beach appears to charge standard city plan-check/permit processing fees plus county/school-related charges where applicable, but the official fee schedule page does not clearly isolate ADU-specific dollar amounts in the provided results. California’s ADU fee rules still apply: impact fees are generally waived for ADUs under 750 sq ft, while larger ADUs may trigger proportionate fees, and Long Beach also indicates a 4.5% Technology Surcharge, 4.5% General Plan Surcharge, and a $90 processing fee on each plan check and permit application.

Los Angeles ADU fees are typically project-specific and are charged by LADBS based on construction valuation rather than a single fixed ADU permit fee. California’s ADU impact-fee baseline applies: many ADUs under 750 square feet are exempt from impact fees, while larger ADUs may be charged proportionately; school and utility fees still need project-by-project verification.

Louisville Metro appears to allow ADUs, but the official city page in the search results did not expose fee details. Available third-party sources suggest Louisville ADU permitting typically involves standard building permit and plan review fees plus possible sewer/utility connection charges, while school fees do not appear to be identified in the sources reviewed.

The City of Lubbock’s published fee code indicates building permit fees are tied to square footage or construction valuation, and plan review is charged as a percentage of the master permit fee. The city also states impact fees are currently set to $0.00, but exact ADU-specific permit totals still need verification against the applicable residential permit category and current fee schedule.

Madison appears to require a site plan approval and building permits for ADUs, plus a Parks impact fee that the city describes as about $4,500 and says should be verified with Parks for the current rate. Dane County’s zoning permit schedule also shows a $50 base fee plus $0.10 per square foot for residential projects in county zoning cases, but whether that applies depends on whether the property is in city or county jurisdiction.

Manhattan is part of New York City’s new ADU program, but the available official guidance found here does not provide a Manhattan-specific permit fee schedule. The clearest documented ADU-related charge is a $600 NYC DOB fee for each pre-approved ADU design submission; other project permit, plan review, and any utility-related charges must be verified in the underlying NYC permit and utility schedules.

McAllen’s official fee schedule shows a residential building permit minimum fee of $48 plus $0.16 per square foot, and a park development fee of $700 per unit. The available city documents do not clearly isolate a separate ADU-specific fee schedule, so ADUs likely fall under the city’s general residential permit and development fees, but this must be verified with the City of McAllen permitting office.

McKinney appears to allow ADUs under city rules and uses a valuation-based building permit fee structure, with a stated minimum plan review/permit fee of $100. Exact ADU-specific fee totals were not clearly published in the available official sources, so several items need verification through the city permit schedule and utility providers.

Memphis allows ADUs, but the official fee schedule specific to ADUs was not fully accessible in the search results. The best-supported official evidence indicates Memphis and Shelby County building permit fees are tied to construction value and a fee schedule exists, while secondary sources estimate total ADU permitting costs in the low thousands.

Mesa requires a building permit for ADUs, and the city’s official ADU page confirms size, zoning, and setback rules, but the search results do not provide an official itemized fee schedule. Available third-party guidance suggests Mesa fees are valuation-based and that total project-related fees may include plan review, permit, and utility development charges, but each amount should be verified directly with Mesa before budgeting.

Miami-Dade County confirms ADUs are recognized on single-family lots in the county, but the exact City of Miami fee schedule for ADUs was not available in the provided official sources. Non-official guides suggest permit and related fees are typically several thousand dollars, but those amounts should be verified directly with the City of Miami and Miami-Dade County before use.[8][1][6]

Milwaukee appears to allow accessory dwelling units under current city rules, but the official fee schedule and any ADU-specific impact or utility charges are not clearly published in the search results. Available non-official sources suggest total permit-related costs are often in the low-thousands, while the city’s official ADU page mainly points to financing and planning information rather than a fee schedule.

Minneapolis allows ADUs, but the provided sources do not include an official city fee schedule specific to ADUs. The most reliable official source here is the City of Minneapolis ADU page, while fee amounts are only supported by third-party estimates and should be verified against the current Minneapolis permit fee schedule before use.

Mission Viejo ADUs are subject to California’s statewide fee limits, including a development impact fee exemption for ADUs under 750 sq ft, but the exact City of Mission Viejo fee schedule was not identified in the provided sources. Orange County road fees and California school/impact-fee rules may still affect larger ADUs, so the current city-specific fee amounts should be verified directly with the City and applicable districts/utilities.

Modesto has a city ADU permitting page, but the clearest fee estimate available in the provided sources is a Stanislaus County ADU building-fee estimate used for Modesto-area applications. California’s ADU impact-fee rule applies: ADUs under 750 square feet are exempt from impact fees, while larger ADUs may owe proportionate fees.

Murrieta’s ADU handout confirms ADUs are allowed by-right with a building permit and sets local size/process rules, but the provided sources do not include a verified city fee schedule. California law also limits local impact fees on ADUs under 750 sq ft, and exact Murrieta-adopted fees should be verified in the city’s current fee resolution and utility/school district schedules.

Myrtle Beach appears to use a standard city permit-fee schedule that includes valuation-based permit fees, a separate per-square-foot charge for some new construction, and a workforce-housing surcharge; however, the city documents found do not clearly show a dedicated ADU-specific fee. Zoning/ADU applicability itself should be verified with the city before budgeting fees.

Nashua appears to allow ADUs under local zoning and building review, but the available sources do not provide a clear official fee schedule. I found references to permit/approval requirements and statewide ADU policy context, but not exact Nashua-specific ADU fees.

Official Nashville guidance confirms DADUs are permitted in specific zoning/overlay situations and that a building permit is required, but the city page provided does not publish a clear ADU-specific fee schedule. Publicly available third-party estimates suggest permit-related costs are often in the low-thousands, but those figures must be verified against Metro Nashville permit records and any utility connection charges.

New Haven appears to allow ADUs, but the fee schedule for an ADU is not clearly published in the search results. The most defensible city-specific source found is the New Haven fee schedule page, which should be checked directly for the current building/plan review line items before relying on any estimate.

New Orleans appears to require an ADU-related permit through the City’s Department of Safety and Permits, with fees that are valuation-based rather than a clearly published flat ADU fee. The best official fee source found is the City’s accessory-structure permit page, which lists a base permit fee plus a cost-based formula; exact ADU-specific totals still need verification with the city because publicly accessible fee schedules are not explicit.

New York City has an official pre-approved ADU design submission fee of $600 per ADU design submission, but the broader DOB permit, plan review, and utility-related fee schedule for a specific ADU was not clearly identified in the provided sources. State ADU grant programs exist, but they are subsidies rather than city fees.

Publicly available search results confirm that Newark allows ADUs in some form, but they do not provide an official city fee schedule for ADU-specific permits or pre-development charges. The most reliable next step is to verify fees directly with Newark's Division of Construction Official and any linked city departments before relying on third-party estimates.

Norfolk appears to allow accessory dwelling units in some residential contexts, but the provided official sources do not include a clear ADU-specific fee schedule. The most defensible result is that permit fees likely follow the city’s general building permit and review processes, which should be verified directly with Norfolk Development Services before filing.

North Las Vegas appears to allow ADUs subject to local zoning and building review, and the city publishes at least some permit-related fees, including an administrative fee, a residential park impact fee, and a Clark County transportation tax charge. Exact ADU-specific permit and utility totals were not fully clear from the available official materials, so several items should be verified directly with the city before budgeting.

Oakland’s official ADU pages confirm the permit path and some utility requirements, but the provided results do not include an official fee schedule. California law also limits or waives certain ADU impact fees for smaller units, so exact Oakland fees must be verified in the city’s current fee tables and linked utility/school district schedules.

Ogden appears to require an administrative land-use review fee for an accessory dwelling unit, and separate building/inspection/utility-related fees may apply, but the exact total ADU cost depends on the project scope and the city's current building fee schedule. The clearest official item found is a $275 accessory dwelling unit administrative review fee, while broader permit, plan check, and utility connection charges need direct verification from Ogden's current building and utility fee schedules.

Oklahoma City appears to allow accessory dwellings under city code, but the available official source does not publish a clear ADU-specific fee schedule. The most relevant verified cost item is that detached ADUs require normal building, electrical, plumbing, and mechanical permits, and exact amounts should be confirmed with Development Services.

Omaha allows ADUs citywide under a 2024 zoning update, but the search results did not surface an official city fee schedule for ADU-specific permit, review, utility, or inspection charges. The most defensible result is that fees must be verified directly with Omaha Planning/Building and utility providers before budgeting.

Orlando allows ADUs under its city code, but the publicly available results here do not include an official Orlando or Orange County ADU fee schedule. The strongest official source found confirms ADU size and lot standards, while fee amounts still need verification from the City of Orlando permit calculator, fee schedule, and any Orange County impact-fee or school-district sources.

Oxnard requires a building permit and plan check for ADUs, with plan check fees based on valuation. The city publishes development fee schedules, but the exact ADU fee total depends on project type, valuation, and whether California ADU exemptions apply; state law also limits certain impact fees for smaller ADUs.

Palm Bay treats ADUs as a mobile home unit for impact-fee purposes, which likely reduces impact fees compared with standard single-family rates. The city publishes annual rate and fee schedules, but the exact ADU permit and utility charges were not clearly exposed in the provided official pages, so several items need manual verification.

Palm Coast publishes a city impact-fee schedule that includes park, fire/rescue, educational, library, and transportation fees, plus utility fee schedules and a separate building department page for permits and inspections. The most directly usable ADU-related fee data found are city impact fees per dwelling unit and utility connection-related fees; exact total ADU cost still depends on unit size, whether the lot is platted, and the current transportation schedule details.

Pensacola’s official fee page shows construction plan review and inspection-related fees, but the available source does not clearly provide an ADU-specific fee schedule. No official city, county, utility, or school-district impact-fee schedule for an ADU was identified in the provided results, so most fee fields remain unverified.

Peoria County’s residential permit schedule shows a specific fee category for accessory structures, but I did not find an official city ADU-specific fee schedule. For an ADU-like detached accessory structure, the county lists a square-foot permit fee, a minimum permit fee, and a technology fee; electrical, plumbing, and HVAC permits are additional if applicable.

Philadelphia appears to allow accessory dwelling units under city zoning rules, and the main predictable city-level charges are zoning/permit-related fees rather than a dedicated ADU impact fee. The official city permit page lists a $25 filing fee for one- or two-family dwellings, a $1,050 optional accelerated plan review fee, and a $4 per-page record retention fee, while the final permit fee depends on the project and must be verified in the city fee schedule.[8]

Phoenix’s official ADU page confirms that residents can use no-cost approved standard plans, but a site plan is still required for permitting. Publicly available official sources in the search results do not show a clear ADU-specific fee schedule, so permit and any impact-fee amounts should be verified directly with the City of Phoenix fee schedule and permit counter.

Pittsburgh’s official zoning engagement page says ADUs are permitted by right as an accessory use and allows up to two ADUs per residential lot, but the city’s public fee schedule does not appear to publish a dedicated ADU fee table. The clearest official cost item found is the city’s valuation-based permit fee schedule, while impact fees and school fees were not identified in the official sources reviewed.

Plano allows residential accessory dwelling/backyard cottage construction subject to building permits and plan review. The city’s published fee schedule shows a valuation-based building permit fee table and a separate residential addition/alteration/backyard cottage fee line, but some exact ADU-specific permit and utility charges still need verification from current city departments.

Official City of Port St. Lucie pages confirm that ADU-related permits are handled by the city, but the city page available here does not publish an ADU-specific fee schedule. Secondary sources claim base building permit totals around $360-$666 plus separate trade permits, but those amounts should be verified directly with the city before use.

Portland has official ADU fee guidance showing sample permit and related city charges, plus separate impact-fee treatment for some ADUs. Exact total fees depend on project type, valuation, site conditions, and whether system development charges are waived or triggered.

Poughkeepsie’s fee picture is split between the City of Poughkeepsie and the Town of Poughkeepsie, and the available official schedules show permit and review fees but do not clearly publish a city-specific ADU fee schedule. ADU-related costs will likely depend on whether the property is in the city or town, and on whether the project triggers building permit, plan review, or site plan review fees.

Providence appears to allow ADUs by right under Rhode Island law, but I could not verify an official city fee schedule in the provided results. Available non-official sources suggest standard building and plan-review fees may apply, while ADU-specific impact or school fees are likely none or not separately charged; these amounts should be verified directly with the City of Providence.

Provo allows ADUs, and the city’s official ADU page says detached ADUs can trigger impact fees for utility connections, parks, and emergency services, while internal ADUs are not subject to impact fees under Utah state guidance. The city code also requires an ADU rental dwelling license application fee to be paid per the consolidated fee schedule, but the exact dollar amount was not available in the sources reviewed.

Queens is within New York City’s ADU pilot/framework, but the available official fee details in the provided results are program- and permit-process oriented rather than a published Queens-specific ADU fee schedule. The strongest sourced items are NYC/HPD program pages and the NYS Plus One ADU program, but they do not provide exact permit fee amounts for Queens ADUs.

Raleigh allows ADUs, and the most reliable city source identifies at least one official ADU permit pathway. The city’s published fee guide shows some likely applicable pre-development charges, but exact ADU total fees depend on project valuation, site work, and whether utility connections or special facility fees apply.

Reading publishes a zoning permit fee schedule and a subdivision/land development fee schedule, but I did not find a city-specific ADU fee schedule. An ADU in Reading would likely trigger at least a zoning permit fee and possibly building, plan review, and land development-related fees depending on scope and whether the project is treated as a land development or permit-only application.

Reno allows ADUs and uses the city’s electronic permitting portal, but the exact ADU fee schedule is not clearly published in the provided results. Available sources indicate that fees vary by project valuation, sewer/water connections, and development impacts, so the most reliable output here is a verification-oriented fee map rather than exact dollar amounts.

Richmond’s ADU-related costs appear to be governed primarily by the City’s building permit fee schedule, which uses a valuation-based formula plus a 2% state surcharge; the city’s ADU page confirms ADUs are allowed and gives size limits, but it does not publish a standalone ADU fee schedule. Exact total fees for a specific ADU should be verified with Planning and Development Review and the permit fee schedule.

Riverside allows ADUs and publishes a building permit/plan check fee schedule based on valuation; California’s ADU rules also limit local impact fees for smaller ADUs. Exact project totals still need verification against the current city fee schedule, utility providers, and Riverside Unified School District rules.

Roanoke publishes a city fee schedule that includes construction permit, building plan review, zoning/building permit, and related development fees; however, the city’s public fee page does not clearly list a dedicated ADU fee, so an ADU in Roanoke likely follows the standard permit and review schedule and must be verified with Planning/Building staff.

Official City of Rochester pages confirm that ADU-related permits are handled through the city’s building permit process, but the city page available in the search results does not publish a dedicated ADU fee schedule. Third-party sources report general fee ranges, while a Monroe County-area town fee schedule shows an accessory-apartment surcharge that may not apply within the City of Rochester and should not be treated as the city fee.

Rockford appears to have a city fee schedule that governs residential building permits and related development charges, but the official fee documents found do not clearly isolate an ADU-specific permit fee. Current public materials point to valuation-based building permit and inspection fees, plus separate utility and land-use charges that may apply depending on the project scope and hookups.

Round Lake Beach publishes a single-family permit packet that bundles building permit, plan review, grading review, inspections, water/sewer, bonds, and a Lake County Public Works fee; it also says impact and transition fees are handled through attached schedules that are not fully visible in the provided result.[1]

Sacramento City uses valuation-based permit fees and a separate planning application fee for ADUs; the City also states that development impact fees are waived for ADUs 749 sq ft and under, consistent with California law. Exact city fee amounts need to be verified from the current fee estimate/formula because the available official pages do not publish a single fixed ADU fee schedule in the search results.

City of St. Louis ADU-related fees are not clearly published on a single official ADU fee page in the search results, but the city does publish zoning service fees and appears to use separate building/trade permits with valuation-based building permit pricing for projects over a threshold. No official impact fee or school fee schedule was found in the provided results, so those items should be verified directly with the city and local utilities.

Saint Paul ADUs are subject to standard building, plan review, and zoning fees, plus two ADU-specific charges identified by the city: Metropolitan Council SAC and Parkland Dedication fees. The city documents a combined additional cost of about $3,860 for SAC, SAC admin, and the maximum parkland fee, but exact permit and plan-review totals depend on project valuation and scope.

City guidance confirms ADUs are allowed in some zoning districts and that an 800-square-foot ADU with one bathroom is approximately $1,020 in city-related permit and impact fees, but the city page does not publish a full fee schedule, so some components should be verified during permit intake.

Salem allows ADUs in several residential and some mixed-use zones, requires a building permit, and states that system development charges (SDCs) have been waived for ADUs. Exact permit, plan review, and utility-related fees were not clearly published in the results, so those items need verification on the city fee schedule and utility forms.

Salt Lake City allows accessory dwelling units, but the official city sources provided here do not publish a single ADU-specific fee schedule. The best-supported items are the city's building-services ADU guidance and a city predevelopment/process source; exact permit, plan-check, and utility connection fees still need verification from the current city fee schedule and Salt Lake City Public Utilities.

San Antonio allows accessory dwelling units and the City requires a separate ADU permit process with plan review and inspections. The official city pages confirm that applicants must use BuildSA, submit an affidavit/covenant, and pay a plan review fee, but the exact ADU fee schedule was not exposed in the search results and should be verified in the City fee schedule and with utilities such as SAWS and CPS Energy.

San Bernardino’s official city ADU page confirms plan review is paid at submittal, permit fees are collected before issuance, and a school fee letter is required for structures 501 sq ft and larger. California law also requires proportionate treatment of impact fees for ADUs 750 sq ft or larger, and the city links to its current fee schedule, but the exact ADU fee amounts were not clearly extractable from the available official pages.

San Diego ADU fees typically include permit/plan-check charges, utility connection charges, and possibly school fees for larger units. California SB 13 also requires ADU impact-fee waivers for many smaller ADUs, and San Diego County notes its ADU fee waiver program ended for new qualifying projects after January 9, 2024.[1][9]

San Francisco allows ADUs, but the exact fee total depends on project valuation, scope, and whether the unit is under the California 750 sq ft impact-fee exemption. The city’s official fee schedule confirms valuation-based Department of Building Inspection fees, while California law sets the ADU impact-fee baseline for smaller units and school-fee rules remain district-dependent.[9]

San Jose uses the City building fee schedule and an ADU fee estimator for permitting costs, while California law limits local ADU impact fees for units under 750 square feet. The city’s public ADU pages confirm permit-fee variability by size, but the exact fee schedule was not captured here and should be verified in the City’s current building fee schedule and estimator.

Santa Ana states that ADU projects are subject to application review, permit, and development impact fees, but the city does not publish a simple ADU-specific fee schedule on the pages retrieved here. California law also limits certain ADU impact fees for smaller units, so final charges must be verified with the city, school district, and utilities before filing.

Santa Clarita’s planning fee schedule lists a $400 ADU planning fee, but exact total permit costs still need verification from building, public works, fire, school district, and utility fee schedules. California law also limits ADU development impact fees: ADUs under 750 square feet are exempt, and larger ADUs must be charged proportionally by size.

Santa Rosa approves ADUs through the building permit process and follows California’s ADU fee limits: no impact fees for ADUs under 750 square feet, reduced fees for larger ADUs, and no separate utility connection fees for internal conversion ADUs under 750 square feet. The city’s official fee schedule also shows surcharge percentages applied to permit-related fees, but the exact ADU total depends on project type and must be verified with current permit staff or an itemized permit estimate.

Sarasota allows ADUs in most residential and downtown zones, with city rules limiting size to 650 sq ft and requiring owner occupancy plus an affordable-rent affidavit for new permits. Publicly accessible official sources confirm the permit pathway and zoning rules, but they do not clearly publish a consolidated ADU fee schedule online, so fee amounts should be verified directly with the City and Sarasota County before filing.

Savannah appears to allow ADUs in multiple zoning districts, with a city PDF indicating size and use rules, but the provided official source set does not show a clear public fee schedule for ADU-specific permit, plan check, impact, school, or utility connection charges. The most defensible fee finding from available sources is that any exact dollar amounts need verification directly with City of Savannah Development Services and related utilities.

Scottsdale requires an ADU to go through the city permit process, and city-adjacent guidance indicates permit costs are tied to building valuation plus separate trade permits. Official Scottsdale permit pages confirm applications and fee payment through SPUR, but the specific ADU fee schedule was not directly exposed in the provided results, so exact amounts should be verified with the city permit calculator or staff.

Available official-source evidence was not enough to verify a Scranton-specific ADU fee schedule. Scranton’s zoning materials indicate conditional uses can require an application fee set by the City, but the actual fee amount was not found in the provided results, so any ADU-related permit costs should be verified directly with the City and its fee schedule.[5][7]

Seattle allows ADUs and SDCI says ADUs are permitted through a construction addition/alteration permit or a permit to establish use for legalization; SDCI also states that some standards do not apply, including parking, street improvements, and mandatory housing affordability contributions. Exact current fee amounts were not clearly published in the official ADU page, so the fee items below rely on official fee-schedule pages and manual verification is still needed.

Official Shreveport fee schedules are available, but the results do not clearly identify a dedicated ADU permit or impact-fee schedule. The city’s permit/inspection system is online, and the most relevant official fee documents appear to be general zoning, planning, and permit fee schedules that would need parcel- and scope-specific verification for an ADU.

South Bend’s official building pages confirm that permits are required for building work and that fee payment is handled by the Building Department, but the provided official sources do not expose a clear ADU-specific fee schedule. The city’s code snippet available in the search results shows at least one fee formula for another permit type, not an ADU-specific charge, so exact ADU permit and pre-development fees should be verified directly with the Building Department.

Spokane’s current ADU-related fees appear to be governed by the city’s 2025 residential fee schedule, but the exact ADU permit and pre-development fee amounts are not clearly exposed in the available official page snippet. Washington state law also limits ADU impact fees to no more than 50% of the principal unit’s impact fees for covered jurisdictions.

Springfield, Massachusetts appears to allow ADUs under state law, but the exact city fee schedule for ADU-specific permits and any utility or review charges was not clearly identifiable from the available official materials. State ADU rules set size and by-right eligibility, while local ordinance and department fee schedules still need verification for project-specific costs.[8][10]

Springfield, Missouri appears to charge ADU-related fees through its standard residential building permit and trade permit schedules, but the city’s publicly available fee documents do not clearly isolate a separate ADU permit fee. The most defensible approach is to treat ADU costs as valuation-based building permit fees plus any applicable electrical, plumbing, mechanical, inspection, or development-review fees that may be triggered by the project.[5][8][9]

Staten Island ADU costs are governed by New York City and state rules rather than a separate borough fee schedule. The clearest official fee found is the NYC Plus One ADU Program application fee of $200; other pre-development, permit, and connection fees should be verified with NYC DOB, HPD, and utility providers before budgeting.

Stockton states that ADU permit fees are calculated at application submittal, and its public ADU flyer says city impact fees do not apply to ADUs under 750 square feet. The city also says ADU plans are available free of charge, but school district developer fees and utility connection fees may still apply depending on the project and service requirements.

Syracuse appears to allow ADUs under local zoning, but the official fee schedule for ADU-related permits was not identified in the available official sources. The most defensible approach is to treat permit, review, and utility charges as needing direct verification with the city and relevant utilities before filing.

Tacoma allows ADUs and requires a building-permit-based review, but the exact city fee schedule was not available in the provided official sources. State law requires cities to allow two ADUs on qualifying residential lots in urban growth areas and limits ADU impact fees to no more than 50% of the principal unit’s impact fees.[8]

Tallahassee allows ADUs in all zoning districts and requires residential building permits; the city also appears to have an ADU fee waiver/rebate program mentioned by secondary sources, but the official fee schedule and current waiver amount need verification from city documents.

City of Tampa’s official ADU page confirms ADUs are allowed only in designated eligible areas and directs applicants to city permitting and zoning resources, but the search results provided do not include an official published ADU fee schedule. I found only secondary estimates for permit and utility costs, so the fee fields below are left mostly unpriced pending verification from City of Tampa, Hillsborough County, and utilities.

Thousand Oaks allows ADUs and JADUs on residentially zoned properties, but the provided results do not include an official city fee schedule. California’s ADU impact-fee baseline applies: no impact fees for ADUs under 750 square feet, and proportional impact fees for ADUs at or above 750 square feet, but exact Thousand Oaks fee amounts still need verification from city fee schedules or staff.

Toledo appears to treat an ADU as an accessory structure/addition subject to standard residential building permit, plan review, and zoning compliance fees. The clearest official fee items found are the City of Toledo certificate of zoning compliance fee and Lucas County residential building permit and plan review fees; exact ADU-specific surcharge or utility tap fees were not identified in the available official sources.

Trenton’s municipal code appears to allow accessory dwelling units, but the available official materials do not clearly expose a dedicated ADU fee schedule. The most reliable next step is to verify Trenton’s current building permit, plan review, zoning, and utility connection fees directly with the city and serving utilities before budgeting an ADU project.

Tucson allows ADUs on residential lots, but the official sources found here describe the zoning rules more clearly than the fee schedule. I found a city PDF showing fee examples and fee-per-square-foot figures, but not a current official fee schedule for ADU-specific permit, impact, or utility charges, so most fee entries must remain unverified.

Tulsa appears to allow ADUs by right in at least some residential districts, but the official fee schedule for a specific ADU permit was not clearly identified in the provided official sources. The best verified local fee evidence is the City of Tulsa planning application fee table and the city’s general building permit/plan review process, which still need project-specific confirmation for an ADU.

Victorville publishes an updated residential fee kit that includes utility-related development charges such as sewer and regional drainage fees, but the exact ADU-specific permit total is not clear from the available excerpts. California’s ADU rules also limit local impact fees for smaller ADUs, so the most important items to verify are whether the ADU is under 750 sq ft and whether Victorville applies any locally adopted connection or development charges.[1][9]

Virginia Beach appears to allow ADUs/accessory apartments, but the exact city fee schedule was not available in the provided results. The most defensible fee data from the available sources is that permit costs are tied to construction value and that no ADU-specific impact fees or school fees were identified in secondary sources, which still needs verification from the city permit office.

Visalia states that ADUs and JADUs require a building permit through the City, with plan check completed in 20 calendar days or less for initial submittals and 10 calendar days or less for resubmittals. The city also notes that ADUs under 750 square feet are exempt from impact fees under state law, but exact local fee amounts were not clearly published in the sources reviewed.

Washington, DC allows accessory dwelling units in many residential zones, but the official fee schedule for a typical ADU permit is not clear from the available official sources. DC official zoning and housing documents confirm ADU eligibility and income-related ADU programs, while permit-specific costs appear to depend on the project and must be verified with DC permitting and utility agencies.[2][8]

Wichita’s ADU permitting is handled through the local building/permitting system, and the clearest official fee evidence located is the MABCD building permit rate of $0.38 per finished square foot for finished living area, with separate rates for unfinished spaces. I did not find a city-issued ADU-specific fee schedule, so exact ADU total fees, plan review charges, and utility connection costs should be verified with MABCD and local utilities before filing.

Wilmington’s official fee schedule shows an accessory-structure permit line item of $44 plus inspection fees, but the more ADU-specific permit path and any county utility connection charges still need verification through New Hanover County and local utilities.

Official city fee schedules are available, but the search results do not expose an ADU-specific permit fee table or a clearly published ADU fee schedule. The city has stated that ADUs are now staff-permitted under qualifying conditions, replacing an earlier $1,000 special use rezoning review fee, but exact current permit and related fee amounts still need verification from the city fee schedule and permitting staff.

Winter Haven appears to charge city impact fees on new residential construction, and ADUs are also subject to Polk County impact fees where county rules apply. The clearest official source found is the city’s building-permits page for permit processing, but the exact city fee schedule was not directly available in the search results, so several fee items require verification.

Worcester’s official ADU guidance points to a building-permit-based process, a recorded owner affidavit, and a likely detached-ADU sewer connection fee of $1,650 per bedroom. The city also directs applicants to the Inspectional Services fee schedule and DPW engineering for utility-related charges, but the official fee schedule text was not fully readable in the provided results.

York city permit fees appear to be based on a valuation formula, with a building permit fee of 1.25% of valuation and a plan review/inspection fee (RIF) of 0.75% of valuation, capped at 1.75% of BVD; a Pennsylvania Act 13 fee of $4.50 also applies to UCC permits. The city fee schedule is older and should be verified against current local permitting rules before use for ADU budgeting.

Youngstown appears to allow ADUs under its zoning and charge a small zoning/application fee, but the exact total permit and review cost for a specific ADU is not clearly published in the available official fee schedule. The clearest city-specific fee found is a $25 zoning fee for ADU-related applications, while the building permit fee schedule is present but not readable enough here to extract an exact ADU-specific total.