Baltimore ADU Permit Fees & Cost Calculator
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.
Free ADU fee calculator
Estimate local ADU fees
Step 1 of 5: Location
The calculator uses staged city data from the ADUFee database with visible confidence levels and dated source tracking.
Fee overview
The fee information found is mostly from non-official secondary sources, so the exact amounts and fee applicability must be verified with Baltimore City DHCD and the city permit portal.
Do not rely on the cited estimated ranges as official fees.
Baltimore is an independent city in Maryland; county-level or school-district fee practices may differ from nearby jurisdictions.
Baltimore City ADU fees, if any, are handled through the city permit/plan review system rather than a separate ADU-specific fee schedule.
Because the search results did not include an official Baltimore City fee ordinance or schedule, numeric fee fields are left null.
Baltimore fee estimates should be verified against the current city, utility, and school district fee schedules before filing.
FAQs
Are Baltimore ADU fee estimates official?
No. ADUFee.com provides planning estimates only. Final fees are set by the city, utility providers, school district, and other agencies.
What sources are used for Baltimore?
The database stores city, state, utility, school, county, and other source links where available. Each estimate should still be verified locally.
Can ADU fees vary within Maryland?
Yes. Permit, utility, school, inspection, and impact fees can vary by jurisdiction, parcel, project size, utility provider, and local interpretation.