Accessory Structures in Warwick, RI (2026)
2 verified accessory structures rules for Warwick, Rhode Island, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Warwick allows one accessory family dwelling unit inside a house in any residence district under Zoning Ordinance section 601.4(B), capped at 600 square feet or 30 percent of the building's gross floor area, whichever is smaller, restricted to a family member of the owner, and requiring a certificate of occupancy.
Warwick Accessory Dwelling Unit Rules
Some RestrictionsWarwick Zoning Ordinance § 601.4(B)
(B)In any residence (A) district, one accessory family dwelling unit, as defined in section 200, shall be permitted on a lot in a principal residential structure only, provided that any such accessory family dwelling unit:(1)Shall only be located on a lot that complies with the lot area regulations of the district in which it is located.(2)Shall not have a separate entrance to the structure ser...
Shed & Carport Rules
A backyard shed in Warwick is regulated as an accessory building under Zoning Ordinance section 601.1: it can't exceed 20 feet in height, can't contain a dwelling unit, and must sit at least ten feet off the rear lot line and 5 to 15 feet off the side line depending on the residence district.
Warwick Shed Size, Setback & Permit Rules
Some RestrictionsWarwick Zoning Ordinance § 601.1
601.1. Accessory building and uses, residential. Accessory buildings and uses, including private garages, in a residence district are permitted which: (A)Are clearly incidental to and customarily associated with the principal use.(B)Are operated and maintained under the same ownership and on the same lot as the principal use.(C)Do not exceed 20 feet in height for detached buildings, excepting A...