Accessory Structures in Providence, RI (2026)
9 verified accessory structures rules for Providence, Rhode Island, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Providence's zoning ordinance addresses accessory dwelling units in residential districts. ADUs may be permitted with conditions including size limits and compliance with building codes.
Providence ADU (Accessory Dwelling Unit) Rules
Some RestrictionsADU Permits
Providence permits Accessory Dwelling Units by-right on residentially zoned lots under Rhode Island General Laws Section 45-24-37(j), which was substantially expanded by HB 7062Aa in 2024. The City's Department of Inspection and Standards issues building permits and the required Certificate of Occupancy. ADUs may be up to 900 sq ft for a studio/one-bedroom or 1,200 sq ft for a two-bedroom unit per the City's February 2025 ADU Guidelines.
Providence ADU Permit Requirements
Some RestrictionsADU Impact Fees
Providence does not impose a dedicated ADU impact fee. Standard building, electrical, plumbing, and mechanical permit fees through the Department of Inspection and Standards apply, scaled to construction value. Rhode Island state law (R.I. Gen. Laws Section 45-24-37(j)) limits municipal fees that would render ADU construction infeasible. Sewer and water connection fees through Providence Water and Narragansett Bay Commission may apply for new service.
Providence ADU Impact Fees
Few RestrictionsADU Owner Occupancy
Rhode Island's 2024 ADU law (R.I. Gen. Laws Section 45-24-37(j)) permits one ADU by right per lot. The strongest by-right pathway is on owner-occupied properties, with additional by-right pathways for lots of 20,000+ sq ft and for ADUs built within the existing footprint of a principal or accessory structure. The state law also permits an ADU by-right as a reasonable accommodation for a family member with a disability.
Providence ADU Owner-Occupancy Rules
Some RestrictionsADU Rental Restrictions
Rhode Island state law expressly prohibits using ADUs for short-term or transient rentals through hosting platforms. Under R.I. Gen. Laws Section 45-24-37(j), ADUs may not be offered or rented for tourist or transient use (under 30 days) at any time. Long-term rentals (30+ days) of ADUs are permitted. Providence additionally restricts non-owner-occupied short-term rentals in R1, R1A, R2, and R3 zones.
Providence ADU Rental and Short-Term Restrictions
Heavy RestrictionsShed Rules
Providence allows storage sheds as accessory structures in residential zones. Sheds must comply with setback requirements and larger sheds require a building permit.
Providence Shed & Accessory Structure Rules
Some RestrictionsGarage Conversions
Converting a garage to living space in Providence requires a building permit and must meet habitability standards. Off-street parking requirements must still be satisfied.
Providence Garage Conversion Rules
Some RestrictionsCarport Rules
Providence Zoning Ordinance Chapter 27 treats a carport as an accessory structure that must be on the same lot as the principal dwelling and meet base-zone setbacks. A building permit through the Department of Inspection & Standards (RI Statewide Building Code, RISBC-1, adopting the 2021 IRC) is required before construction.
Carport Rules in Providence
Some RestrictionsTiny Homes
Rhode Island has adopted the 2021 IRC with Appendix AQ (Tiny Houses), so a foundation-built tiny home in Providence must meet RISBC-1 standards and Chapter 27 zoning. Detached tiny homes used as second units must qualify as Accessory Dwelling Units under RIGL 45-24-37 and 45-24-73, must be on a foundation, and may not be used as short-term rentals.
Tiny Home Rules in Providence
Some RestrictionsLooking for Providence County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Providence city rules.
Accessory Structures in Providence County →