This guide provides a brief overview of the ADU zoning requirements in New Haven so you can determine whether you will be eligible to build an ADU. Keep in mind that this guide is subject to change, and it is for information purposes only. Please be sure to check with the New Haven Planning Department for the latest rules and regulations or book a free consultation with us.
Where are ADUs allowed:
New Haven zoning code allows ADUs in the residential districts of RM-1, RM-2, RS-1, RS-2. You can find out your zoning code by clicking here. There is also a minimum lot size requirement of 4,000 square feet.
Types of ADUs:
ADUs in New Haven can be created through a conversion of an existing detached structure (like a garage), or through converting a portion of the principal dwelling.
Parking:
No minimum off-street parking is required for an ADU.
Size:
The minimum livable area of an ADU should not be less than 400 square feet.
The maximum gross floor area of and ADU should not be more than 1,200 square feet or size of principal dwelling, whichever is smaller.
Rental Use:
Renting of ADUs is permitted.
Other Requirements:
Property owner must reside in either the principal dwelling unit or the ADU.
At Haven, we understand that navigating zoning regulations can be challenging and time-consuming for homeowners. We created our free consultation service to make this process as simple as possible for homeowners. Book a free consultation to get started on your ADU project in New Haven, CT!
