Accessory Structures in Cranston, RI (2026)
4 verified accessory structures rules for Cranston, Rhode Island, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Rhode Island RIGL 45-24-73 mandates all municipalities allow ADUs. Cranston permits one ADU per lot in residential districts. ADUs must maintain single-family appearance when attached. Family-member ADUs may not have separate ingress/egress. ADUs cannot be STRs.
Cranston ADU (Accessory Dwelling Unit) Rules
Some RestrictionsShed Rules
Cranston regulates accessory structures through zoning Title 17, Ch. 17.60. Building permits are required above size thresholds. All structures must comply with zoning setbacks. Sheds may not be used as dwelling units.
Cranston Shed & Accessory Structure Rules
Some RestrictionsGarage Conversions
Garage conversions to living space or ADUs in Cranston require building permits and RI State Building Code (SBC-2, IRC 2018) compliance. Converting within an existing footprint qualifies as an ADU by right under RIGL 45-24-73.
Cranston Garage Conversion Rules
Some RestrictionsCarport Rules
Cranston regulates carports as accessory buildings under Title 17, Chapter 17.60 of the Zoning Ordinance. A carport (attached or detached) cannot occupy any required front or corner side yard. In the A-80, A-20, and A-12 districts, it must sit at least 10 feet from the rear lot line; in other residential districts, the rear-yard setback is 5 feet.
accessory-structures/carport-rules
Some RestrictionsLooking for Providence County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Cranston city rules.
Accessory Structures in Providence County →