ADU rules in Cranston, RI — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
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.
Under RIGL 45-24-73 and Cranston's zoning ordinance, one ADU per lot is permitted in residential districts. Cranston specifies that ADUs for family members shall not have a separate means of ingress and egress, and attached ADUs must maintain the appearance of a single-family dwelling. ADUs are allowed by right when providing reasonable accommodation for a disabled family member on owner-occupied lots, on lots of 20,000+ sq ft, or within the existing footprint of a structure. Size limits: 1-bedroom max 900 sq ft or 60% of principal dwelling; 2-bedroom max 1,200 sq ft or 60%. ADUs cannot be offered as STRs (RIGL 42-63.1-2). HOA restrictions on ADUs are void.
Unpermitted ADU: stop-work order. ADU as STR: violation of RIGL 42-63.1-2. Separate entrance for family ADU: zoning violation.
Cranston, RI
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Cranston, RI
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Cranston, RI
Cranston Code Title 8, Chapter 8.20 sets residential noise limits at 55 dBA between 7 AM and 10 PM measured at the property line. Amplified sound equipment m...
Cranston, RI
Cranston regulates amplified music and events. Permits required for public amplification. Residential areas must comply with local noise ordinances.
Cranston, RI
Cranston requires Residential Parking Permits for overnight street parking, limited to two permits per address. Only RI-registered vehicles qualify. All outs...
Cranston, RI
Cranston regulates RV and recreational vehicle storage through zoning (Title 17) and parking ordinances (Title 10). Extended on-street storage is restricted....
Side-by-side rule comparisons with other cities in Providence County.
See how other cities in Providence County handle adu rules.
See how Cranston's adu rules rules stack up against other locations.
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