Zoning for your homeFairfield County, CT
What Is a Zone, and Why Does It Come First?
Every property in Connecticut sits in a zoning district, and that district sets the rules for what can legally be built there, before any design work starts. The zone determines the maximum size, height, and setbacks of a house, and how much of the lot can be covered by the house, driveway, and pool combined.
That's why zoning comes first. A design that doesn't fit the zone's limits isn't buildable as is. It needs a variance, a redesign, or a different lot. Knowing the zone before you start design work means the design work is actually usable.
Each guide below covers one town: its residential districts, minimum lot area, setbacks, height and coverage limits, and how non conforming lots are handled. Every guide includes an address search that returns the zone for a specific property.
Town Guides
Darien, CTFive residential districts, from two acre estate lots to compact in town parcels.
R-2 · R-1 · R-1/2 · R-1/3 · R-1/5
Fairfield, CTFive single family districts covering Greenfield Hill through the beach neighborhoods.
AAA · AA · R-3 · R-2 · A
Greenwich, CTSix districts spanning four acre backcountry lots to dense waterfront neighborhoods.
RA-4 · RA-2 · RA-1 · R-20 · R-12 · R-7
New Canaan, CTSeven districts named by lot size, from four acre parcels to village scale lots.
Four-Acre · Two-Acre · One-Acre · ½-Acre · ⅓-Acre · A · B
Norwalk, CTForm based Citywide Design districts governing lot, setback, and building form.
CD-3L · CD-3S · CD-3
Ridgefield, CTSeven residential districts, from three acre rural lots to the village core.
RAAA · RAA · RA · R-20 · SD R-20 · R-10 · R-7.5
Southport, CTPart of Fairfield, and governed by the same five single family districts.
AAA · AA · R-3 · R-2 · A
Stamford, CTSeven residential districts, from three acre North Stamford lots to city grid parcels.
RA-3 · RA-2 · RA-1 · R-20 · R-10 · R-7½ · R-6
Weston, CTA single two acre residential district covering nearly the entire town.
R-2A
Westport, CTFour single family districts with lot shape tests on top of the acreage minimums.
AAA · AA · A · B
Wilton, CTTwo residential districts at two acres and one acre minimum lot area.
R-2A · R-1A
Planning a build?
We build custom homes across Fairfield County and handle zoning review, land use approvals, and permitting as part of the process.
Start a conversationFlood zone question?
Check if your Fairfield County property sits in a FEMA flood zone and see how it affects design, elevation, and permitting.
Am I in a flood zone?