Connecticut Zoning & Land Use Guide
Last updated: Verified:
Comprehensive guide to Connecticut zoning laws, building codes, and land use regulations.
Key Facts
- Building Code: 2018 CT State Building Code (based on IBC)
- State ADU Law: Yes — ADU-friendly
- ADU Details: PA 21-29 (2021) requires all Connecticut municipalities to allow accessory dwelling units as of right on lots with single-family homes, prohibiting special permit or public hearing requirements and capping local regulations on size, parking, and other conditions.
Cities in Connecticut
Ansonia
Pop. 18,918
ADU: Restricted
Bridgeport
Pop. 148,529
ADU: Allowed
Bristol
Pop. 60,833
ADU: Restricted
Danbury
Pop. 86,518
ADU: Restricted
Derby
Pop. 12,325
ADU: Restricted
Groton
Pop. 38,411
ADU: Restricted
Hartford
Pop. 121,054
ADU: Allowed
Meriden
Pop. 60,833
ADU: Restricted
Middletown
Pop. 48,616
ADU: Restricted
Milford
Pop. 53,396
ADU: Restricted
New Britain
Pop. 75,871
ADU: Restricted
New Haven
Pop. 134,023
ADU: Allowed
New London
Pop. 28,081
ADU: Restricted
Norwalk
Pop. 91,184
ADU: Restricted
Norwich
Pop. 40,125
ADU: Restricted
Shelton
Pop. 40,869
ADU: Restricted
Stamford
Pop. 135,470
ADU: Allowed
Torrington
Pop. 35,515
ADU: Restricted
Waterbury
Pop. 114,403
ADU: Allowed
West Haven
Pop. 55,584
ADU: Restricted
Disclaimer: The information on this website is provided for general informational purposes only and does not constitute legal, financial, or professional advice. Always verify current requirements with your local planning department.