Providence, RI Accessory Structures: ADU Impact Fees (2026)

Providence has not adopted a stand-alone ADU impact fee. Permits issued by the City's Department of Inspection and Standards follow the standard permit fee schedule, which is calculated based on the declared cost of construction (typical building permit fees in Providence are scaled per $1,000 of construction value). Separate electrical, plumbing, gas, and mechanical permits each carry their own flat or per-fixture fees. The Rhode Island statewide ADU framework at R.I. Gen. Laws Section 45-24-37(j) constrains municipalities from imposing requirements (including fees) that would effectively prohibit ADUs. New water service connections route through Providence Water; sewer connections through the Narragansett Bay Commission - these are separate utility fees, not city impact fees. Internal ADUs within the existing footprint of the principal dwelling typically avoid most utility connection charges since they share existing service. The City does not charge school impact, transportation, or park-dedication fees on residential ADU additions.