ADUs are allowed in NarragansettTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Narragansett, RI
Is your property eligible for an ADU?
# of Properties
7,983
Owner-occupied
53%
Zoning districts
19
Avg Home Value
$969,479
Median Lot Size
0.23 acres
Avg Income
$95,261
Residential Types:
7,983 housing units
Single Family
97%
Other
3%
Zoning Districts:
14,803 parcels · 19 districts
R-10
52%(7,688)
R-80
21%(3,081)
R-20
14%(2,033)
R-40
8%(1,232)
Other
5%(769)
ADU Rules
What can you build in Narragansett, RI?
Narragansett, 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
Detached ADU Size Limits
- –Maximum detached ADU size is 26% of the principal dwelling’s living area, or 26% of gross floor area when living area is not provided.
Max Units
- –1 ADU per single-family dwelling per lot.
- –1 AADU per primary dwelling on any lot; AADU not permitted on duplex/multifamily.
Owner Occupancy
- –Affordable ADUs allowed only in owner-occupied single-family residences.
Parking
- –1 off-street space/ADU (in addition to principal); max 1 space; ADUs limited to 2 bedrooms; parking on/adjacent to site.
Rental Restrictions
- –AADUs: Year-round only; written lease ≥12 months; subleasing only with monitoring approval.
- –Standard ADUs: No ADU-specific lease-term or short-term rental limits stated.
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.
Washington County