ADUs are allowed in New MilfordTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for New Milford, CT
Is your property eligible for an ADU?
# of Properties
11,775
Owner-occupied
68%
Zoning districts
37
Avg Home Value
$425,415
Median Lot Size
0.68 acres
Avg Income
$113,320
Residential Types:
11,775 housing units
Single Family
70%
2-3 Family
2%
Apts (4+ units)
3%
Condos
16%
Other
10%
Zoning Districts:
13,742 parcels · 37 districts
R-40
24%(3,286)
R-80
20%(2,801)
R-20
12%(1,685)
R-60
12%(1,655)
Other
31%(4,315)
ADU Rules
What can you build in New Milford, CT?
New Milford, CT follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Special Permit
- –Detached ADU: Special Permit
Interior / Attached ADU Size Limits
- –Maximum ADU size is the least of 1,000 sq ft, 50% of the primary dwelling’s finished floor area, or the amount that leaves at least 700 sq ft in the primary unit.
Detached ADU Size Limits
- –Maximum size of 1,000 sq ft or 50% of the primary residence’s total finished floor area, whichever is less.
Max Units
- –1 ADU per single-family lot
Owner Occupancy
- –Owner must occupy principal dwelling or the accessory apartment
Parking
- –4 off-street spaces total for dwelling+ADU; garage spaces may count; no new curb cuts
Rental Restrictions
- –If using Affordable Housing Incentive: 10-year deed restriction; rent ≤ CGS 8-30g cap; tenants ≤80% AMI
ADU State Law
What can you build in Connecticut?
- –Connecticut Public Act 21-29 (now CGS § 8-2o) established statewide ADU rules.
- –115 municipalities opted out of the state ADU provisions. In those towns, ADUs may still be allowed, but they are regulated solely under local zoning bylaws.
- –54 municipalities did not opt out and are subject to the state's default ADU standards. Local bylaws in these towns must allow at least the minimums required by state law.
- –At least one accessory apartment must be allowed as of right on any lot with a single-family home.
- –Towns must allow an ADU to be at least the lesser of 1,000 sq ft or 30% of the principal dwelling's Net Floor Area.
- –Setbacks, lot size, building frontage, lot coverage, height, and design requirements cannot be more restrictive than those applied to the principal dwelling.
- –Only one parking space can be required per ADU.
- –A passageway between units
- –A separate exterior entrance (unless required by code)
- –A relationship (e.g. familial or employment) between occupants
- –Age minimums for ADU tenants
- –Separate utility billing
- –Periodic permit renewals
- –Owner-occupancy is not required under state law, but towns may impose it.
- –Towns may regulate short-term rentals.
- –Requirements for wells or private sewerage systems still apply, but approval cannot be unreasonably withheld.
- –Towns may not condition ADU approval on fixing unrelated nonconformities on the lot.
- –No new utility connection fees may be charged unless the ADU is built with a new principal dwelling.
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 Connecticut municipalities
Rules change at the town line. Check the municipality your property is actually in.
Western Connecticut County