Gilbert ADU Permit Fees & Cost Calculator
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.
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
This response does not include exact fees because the official ADU-specific fee schedule was not found in the search results.
Secondary-source cost ranges are not substitute for official Gilbert fee schedules.
Verify whether any utility connection charges are billed by separate utility providers rather than by the Town of Gilbert.
The requested ADU is a new residential accessory dwelling unit on a Gilbert single-family lot.
No separate school fee or water/sewer district fee schedule was identified in the retrieved results, so these were not estimated.
The city may use valuation-based permit pricing or a fee schedule not exposed in the retrieved search results.
FAQs
Are Gilbert 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 Gilbert?
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 Arizona?
Yes. Permit, utility, school, inspection, and impact fees can vary by jurisdiction, parcel, project size, utility provider, and local interpretation.