ADUs are allowed in West GreenwichTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for West Greenwich, RI
Is your property eligible for an ADU?
# of Properties
1,994
Owner-occupied
89%
Zoning districts
15
Avg Home Value
$356,717
Median Lot Size
2.03 acres
Avg Income
$139,942
Residential Types:
1,994 housing units
Single Family
99%
2-3 Family
1%
Zoning Districts:
2,598 parcels · 15 districts
RFR2
72%(1,873)
RFR1
15%(393)
SRD
5%(133)
HB
3%(80)
Other
5%(119)
ADU Rules
What can you build in West Greenwich, RI?
West Greenwich, RI follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Maximum size: studio/one-bedroom ADUs are limited to 900 sq ft or 60% of the principal dwelling’s floor area (whichever is less); two-bedroom ADUs are limited to 1,200 sq ft or 60% (whichever is less).
- –By special use permit for an attached elderly/handicapped family apartment: maximum of 500 sq ft or 30% of the principal dwelling’s floor area (whichever is greater).
Detached ADU Size Limits
- –Maximum detached ADU size is 900 sq ft for a studio/one-bedroom or 1,200 sq ft for a two-bedroom, and in all cases also limited to 60% of the principal dwelling’s floor area (whichever is less).
Owner Occupancy
- –No owner-occupancy requirement for ADUs.
Parking
- –1 space per ADU bedroom; ADUs capped at 2 bedrooms (max 2 spaces); no waivers stated
Rental Restrictions
- –Short-term/vacation rentals prohibited; ADUs cannot be offered or rented for tourist or transient use or through hosting platforms.
ADU State Law
What can you build in Rhode Island?
- –On an owner-occupied property as a reasonable accommodation for family members with disabilities;
- –On a lot with a total lot area of twenty thousand square feet (20,000 sq. ft.) or more for which the primary use is residential;
- –Where the proposed ADU is located within the existing footprint of the primary structure or existing accessory attached or detached structure and does not expand the footprint of the structure.
- –Subject to applicable dimensional requirements of the municipality
- –As per §45-24-38 of the RI Zoning Enabling Act, if an existing lot is smaller than the minimum lot size required by zoning, its setback requirements are reduced in proportion to the lot's size, and its maximum lot coverage is increased by the inverse proportion.
- –One ADU per lot
- –No short term rentals
- –Studio or 1 bedroom ADU may be up to 900 sq ft or 60% of the Gross Floor Area of the principal dwelling, whichever is less
- –2 bedroom ADU may be up to 1200 sq ft or 60% of the Gross Floor Area of the principal dwelling, whichever is less
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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ADU rules in other Rhode Island municipalities
Rules change at the town line. Check the municipality your property is actually in.
Kent County