How many one family residence districts does Stamford have?

Several, coded RA-1, RA-2, RA-3, R-10, R-20 and R-7-1/2. RA-1 is the largest district in the entire city at roughly 8,808 acres, and the fractional code in R-7-1/2 is a genuine designation.

What are the combined districts?

Districts pairing a one family district with a design residence district, such as R-20 combined with design residence, or RA-1 and RA-2 combined with it. A parcel in one sits under both designations at once, which is an important diligence point.

How much park land is there?

The Park district covers roughly 885 acres, making it the seventh largest classification in the city and the largest that is not residential.

Stamford Zoning Intelligence

Zoning, permitted uses, and development potential for Stamford, Connecticut. 42 districts with their permitted uses and building controls.

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City Context

How is Stamford zoned?

Stamford regulates land through 42 zoning districts, and the residential system is both large and unusually specific. One Family Residence appears in several distinct districts, coded RA-1, RA-2, RA-3, R-10, R-20 and R-7-1/2, with RA-1 the largest district in the city at roughly 8,808 acres. The fractional code in the last of these is a real designation rather than a typographical artefact.

The more distinctive feature is the Design designation. Stamford carries multiple family districts explicitly labelled by design at low, medium and high density, plus a general multiple family residence design district. It also carries combined districts pairing a one family district with a design residence district, such as one family at R-20 combined with design residence. In those combined districts a parcel sits under both designations at once, which is a genuine diligence point.

The commercial roster is compact and role-based: design commercial, neighborhood business, limited business, village commercial and a Center City district covering roughly 145 acres. Industrial splits into general and light, with general industrial at roughly 485 acres.

Park covers roughly 885 acres, the seventh largest classification. For anyone evaluating a Stamford site the two questions that matter most are which one family district applies and whether a design residence designation is combined with it. This is pre-development intelligence, not legal advice - verify with the local planning department before acquisition.

Zoning Districts

Stamford, Connecticut Zoning Districts: What Do They Mean?

Zoning districts are areas regulated by specific laws that determine land use, building types, and development rules. Each district below shows its zone type. Stamford's ordinance does not state permitted uses as citywide flags, so they are read from each district's own table rather than summarised here.

Zone Code	Zone Type	Area
RA-1 One Family Residence	-	8,807.7 ac
RA-3 One Family Residence	-	3,149.2 ac
RA-2 One Family Residence	-	2,669.5 ac
R-10 One Family Residence	-	1,945.2 ac
R-20 One Family Residence	-	1,488.9 ac
R-7-1/2 One Family Residence	-	1,314.4 ac
P Park	-	884.9 ac
R-5 Multiple Family Medium Density Design	-	738.8 ac
M-G General Industrial	-	484.7 ac
R-6 One And Two Family Residence	-	423.9 ac
R-MF Multiple Family Residence Design	-	332.7 ac
RM-1 Multiple Family Low Density Design	-	271.1 ac
M-L Light Industrial	-	259.1 ac
C-D Design Commercial	-	257.3 ac
C-N Neighborhood Business	-	168.2 ac
CC Center City	-	144.7 ac
R-H Multiple Family High Density Design	-	115.9 ac
R-20/R-D One Family And Design Residence District	-	92.6 ac
RA-1/R-D One Family And Design Residence District	-	78.8 ac
V-C Village Commercial District	-	75.4 ac

Building Controls

What are the building controls in Stamford?

Setback, height, FAR, lot area, and density controls enforced across Stamford zoning districts.

Building height
Coverage
Density
FAR
Front setback
Lot
Lot width
Multi
Pervious
Rear setback
Side setback

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Stamford zoning: frequently asked questions

How many one family residence districts does Stamford have?: Several, coded RA-1, RA-2, RA-3, R-10, R-20 and R-7-1/2. RA-1 is the largest district in the entire city at roughly 8,808 acres, and the fractional code in R-7-1/2 is a genuine designation.
What does the Design designation mean?: Stamford labels several multiple family districts explicitly by design, at low, medium and high density, plus a general multiple family residence design district. The designation identifies districts where design standards form part of the framework.
What are the combined districts?: Districts pairing a one family district with a design residence district, such as R-20 combined with design residence, or RA-1 and RA-2 combined with it. A parcel in one sits under both designations at once, which is an important diligence point.
How is commercial zoning organised?: By role rather than by scale alone: design commercial, neighborhood business, limited business, village commercial, and a Center City district covering roughly 145 acres. The roster is compact relative to the residential side.
How much park land is there?: The Park district covers roughly 885 acres, making it the seventh largest classification in the city and the largest that is not residential.

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Zoning data is pre-development intelligence, not legal advice. Verify with the Stamford planning department before acquisition or design.