ADUs are allowed in MiddletownTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Middletown, RI
Is your property eligible for an ADU?
# of Properties
5,073
Owner-occupied
70%
Zoning districts
25
Avg Home Value
$803,548
Median Lot Size
0.30 acres
Avg Income
$122,135
Residential Types:
5,073 housing units
Single Family
84%
2-3 Family
10%
Apts (4+ units)
1%
Other
6%
Zoning Districts:
6,139 parcels · 25 districts
R-10
40%(2,437)
R-20
20%(1,243)
R-40
14%(850)
R-60
5%(316)
Other
21%(1,293)
ADU Rules
What can you build in Middletown, RI?
Middletown, 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 is the lesser of 60% of the principal dwelling’s gross floor area and a bedroom cap: 900 sq ft (1-bedroom) or 1200 sq ft (2-bedroom).
Detached ADU Size Limits
- –Maximum detached ADU size: up to 900 sq ft for 1 bedroom or 1,200 sq ft for 2 bedrooms, but never more than 60% of the main home’s total floor area.
Max Units
- –1 ADU per lot
Owner Occupancy
- –Owner occupancy required under certain approval pathways.
Parking
- –1 space for 1BR ADU; 2 spaces for 2BR ADU.
Rental Restrictions
- –Short-term rentals prohibited; hosting platforms prohibited
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.
Newport County