CT · State directory
Connecticut ADU rules
Official accessory dwelling unit regulations for 16 jurisdictions in Connecticut, plus statewide law.
Not sure which city yet?
We have read the ordinances for 16 Connecticut cities and lined them up side by side: detached vs internal, size limits, owner occupancy, and approval process.
Statewide ADU law
Connecticut has state-level ADU legislation that applies across local jurisdictions. Local rules below may add requirements on top of state law.
- cga.ct.govOfficial sourceVerified August 2026https://www.cga.ct.gov/current/pub/chap_124.htm#sec_8-2o
- cga.ct.govOfficial sourceVerified August 2026https://www.cga.ct.gov/2026/sup/chap_124.htm
- cga.ct.govOfficial sourceVerified August 2026https://www.cga.ct.gov/2025/ACT/PA/PDF/2025PA-00001-R00HB-08002SS1-PA.PDF
Cities
Bridgeport3 sources · verified August 2026Danbury3 sources · verified August 2026Fairfield3 sources · verified August 2026Greenwich4 sources · verified August 2026Hamden4 sources · verified August 2026Hartford4 sources · verified August 2026Manchester3 sources · verified August 2026Middletown4 sources · verified August 2026Milford6 sources · verified September 2026New Britain4 sources · verified August 2026New Haven3 sources · verified August 2026Norwalk3 sources · verified August 2026Stamford4 sources · verified August 2026Stonington4 sources · verified August 2026Waterbury4 sources · verified August 2026West Hartford4 sources · verified August 2026
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