RealtorTrends

New Haven, CT zoning districts

What each zoning code in New Haven stands for, read from the town's own adopted regulations. Every parcel we list carries one of these codes; this is where you check what it permits.

Read New Haven's zoning regulations

CodeDistrictType ParcelsOpportunities Our reading
RM-2 High-Middle Densitythe zone you clicked Residential 9,535 2,093 Multi-family
RS-2 General Single-Familythe zone you clicked Residential 6,339 0 Single Family
RM-1 Low-Middle Densitythe zone you clicked Residential 5,918 2,075 Multi-family
BA General Businessthe zone you clicked Business 1,194 0 Unclear
RS-1 Special Single-Familythe zone you clicked Residential 464 0 Single Family
IH Heavy Industrythe zone you clicked Industrial 386 0 Single Family
BD-1 Central Business/Residentialthe zone you clicked Mixed Use 307 0 Unclear
IL Light Industrythe zone you clicked Industrial 283 0 Single Family
BD Central Businessthe zone you clicked Business 260 0 Unclear
RH-1 Special High Densitythe zone you clicked Residential 239 25 Multi-family
RH-2 General High Densitythe zone you clicked Residential 179 0 Unclear
RO Residence-Officethe zone you clicked Mixed Use 151 0 Unclear
WCGD —the zone you clicked None 142 0 Single Family
BA-1 Neighborhood Center Mixed Usethe zone you clicked Mixed Use 120 0 Unclear
PDD 27 —the zone you clicked None 105 0 Unclear
PARK Park Districtthe zone you clicked Special 104 0 Single Family
PDD 38 —the zone you clicked None 104 0 Unclear
PDD 48 Planned Development District No. 48the zone you clicked Special 96 0 Unclear
BC Marinethe zone you clicked Business 79 0 Unclear
BA2 —the zone you clicked None 71 0 Unclear
PDD 37 —the zone you clicked None 69 0 Unclear
BD-3 Central Business/Mixed-Usethe zone you clicked Mixed Use 62 0 Unclear
PDD 47 —the zone you clicked None 56 0 Unclear
MULW —the zone you clicked None 46 0 Single Family
PDD 33 —the zone you clicked None 46 0 Unclear
CEM —the zone you clicked None 43 0 Single Family
PDD 26 Planned Development District No. 26the zone you clicked Special 40 0 Unclear
PDD 41 —the zone you clicked None 38 0 Unclear
PDD 49 —the zone you clicked None 36 0 Single Family
PDD 51 —the zone you clicked None 33 0 Unclear
BB Automobile Salesthe zone you clicked Business 32 0 Unclear
BD-2 Central Business/Medicalthe zone you clicked Mixed Use 32 0 Single Family
PDD 52 Planned Development District No. 52the zone you clicked Special 27 0 Unclear
PDD 64 —the zone you clicked None 27 0 Unclear
PDD 119 —the zone you clicked None 26 0 Single Family
PDD 74 —the zone you clicked None 22 0 Unknown
PDD 63 —the zone you clicked None 17 0 Unknown
BE Wholesale and Distributionthe zone you clicked Business 15 0 Unknown
PDD 15 —the zone you clicked None 13 0 Unknown
PDD 45 —the zone you clicked None 12 0 Unknown
PDD 53 —the zone you clicked None 12 0 Unknown
AIRP —the zone you clicked None 10 0 Unknown
PDD 39 —the zone you clicked None 10 0 Unknown
IM Light Industry - Marinethe zone you clicked Industrial 7 0 Unknown
PDD 85 —the zone you clicked None 7 0 Unknown
PDD 99 —the zone you clicked None 7 0 Unknown
PDD 23 —the zone you clicked None 5 0 Unknown
PDD 98 —the zone you clicked None 5 0 Unknown
PDD 54 —the zone you clicked None 4 0 Unknown
RS3 —the zone you clicked None 4 0 Unknown
PDD 131 —the zone you clicked None 3 0 Unknown
PDD 25 —the zone you clicked None 3 0 Unknown
PDD 32 —the zone you clicked None 3 0 Unknown
PDD 10 —the zone you clicked None 2 0 Unknown
PDD 103 —the zone you clicked None 2 0 Unknown
PDD 123 —the zone you clicked None 2 0 Unknown
PDD 126 —the zone you clicked None 2 0 Unknown
PDD 127 —the zone you clicked None 2 0 Unknown
PDD 36 —the zone you clicked None 2 0 Unknown
PDD 65 —the zone you clicked None 2 0 Unknown
PDD 86 —the zone you clicked None 2 0 Unknown
PDD —the zone you clicked None 1 0 Unknown
PDD 100 —the zone you clicked None 1 0 Unknown
PDD 104 —the zone you clicked None 1 0 Unknown
PDD 120 —the zone you clicked None 1 0 Unknown
PDD 121 —the zone you clicked None 1 0 Unknown
PDD 13 —the zone you clicked None 1 0 Unknown
PDD 130 —the zone you clicked None 1 0 Unknown
PDD 24 —the zone you clicked None 1 0 Unknown
PDD 28 —the zone you clicked None 1 0 Unknown
PDD 44 —the zone you clicked None 1 0 Unknown
PDD 7 —the zone you clicked None 1 0 Unknown
PDD 90 —the zone you clicked None 1 0 Unknown
PDD 91 —the zone you clicked None 1 0 Unknown
PDD 97 —the zone you clicked None 1 0 Unknown
PDU 16 —the zone you clicked None 1 0 Unknown
TOC —the zone you clicked None 1 0 Unknown
AIRPORT Airport Districtthe zone you clicked Special 0 0 Unknown
BA/BE —the zone you clicked None 0 0 Unknown
BA/RM1 General Business / Low-Middle Density (split-zoned parcel)the zone you clicked Mixed Use 0 0 Unclear
BA/RM2 General Business / High-Middle Density (split-zoned parcel)the zone you clicked Mixed Use 0 0 Unclear
BA/RO —the zone you clicked None 0 0 Unknown
BA/RS2 —the zone you clicked None 0 0 Unknown
BA1/RM1 —the zone you clicked None 0 0 Unknown
BB/RS2 —the zone you clicked None 0 0 Unclear
BE/IL —the zone you clicked None 0 0 Unknown
IH/PARK —the zone you clicked None 0 0 Unknown
IH/RM1 —the zone you clicked None 0 0 Unknown
IH/RM2 —the zone you clicked None 0 0 Unknown
IL/IM —the zone you clicked None 0 0 Unknown
IL/RM1 —the zone you clicked None 0 0 Unknown
IL/RM2 —the zone you clicked None 0 0 Unknown
IL/RS2 —the zone you clicked None 0 0 Unknown
PARK/RM1 —the zone you clicked None 0 0 Unknown
PARK/RS2 —the zone you clicked None 0 0 Unknown
PDU 1 —the zone you clicked None 0 0 Unknown
PDU 102 —the zone you clicked None 0 0 Unknown
PDU 105 —the zone you clicked None 0 0 Unknown
PDU 106 —the zone you clicked None 0 0 Single Family
PDU 107 —the zone you clicked None 0 0 Unknown
PDU 108 —the zone you clicked None 0 0 Unknown
PDU 109 —the zone you clicked None 0 0 Unknown
PDU 11 —the zone you clicked None 0 0 Unknown
PDU 110 —the zone you clicked None 0 0 Unknown
PDU 116 —the zone you clicked None 0 0 Unknown
PDU 117 —the zone you clicked None 0 0 Unknown
PDU 12 —the zone you clicked None 0 0 Unknown
PDU 122 —the zone you clicked None 0 0 Unknown
PDU 14 —the zone you clicked None 0 0 Unknown
PDU 17 —the zone you clicked None 0 0 Unknown
PDU 18 —the zone you clicked None 0 0 Unknown
PDU 19 —the zone you clicked None 0 0 Unknown
PDU 20 —the zone you clicked None 0 0 Unknown
PDU 21 —the zone you clicked None 0 0 Unknown
PDU 22 —the zone you clicked None 0 0 Unknown
PDU 29 —the zone you clicked None 0 0 Unknown
PDU 3 —the zone you clicked None 0 0 Unknown
PDU 30 —the zone you clicked None 0 0 Unknown
PDU 31 —the zone you clicked None 0 0 Unknown
PDU 34 —the zone you clicked None 0 0 Unknown
PDU 4 —the zone you clicked None 0 0 Unknown
PDU 40 —the zone you clicked None 0 0 Unknown
PDU 42 —the zone you clicked None 0 0 Unknown
PDU 46 —the zone you clicked None 0 0 Unknown
PDU 50 —the zone you clicked None 0 0 Unknown
PDU 55 —the zone you clicked None 0 0 Unknown
PDU 56 —the zone you clicked None 0 0 Unknown
PDU 58 —the zone you clicked None 0 0 Unknown
PDU 59 —the zone you clicked None 0 0 Unknown
PDU 6 —the zone you clicked None 0 0 Unknown
PDU 60 —the zone you clicked None 0 0 Unknown
PDU 61 —the zone you clicked None 0 0 Unknown
PDU 62 —the zone you clicked None 0 0 Unknown
PDU 67 —the zone you clicked None 0 0 Unknown
PDU 69 —the zone you clicked None 0 0 Unknown
PDU 71 —the zone you clicked None 0 0 Unknown
PDU 72 —the zone you clicked None 0 0 Unknown
PDU 73 —the zone you clicked None 0 0 Unknown
PDU 75 —the zone you clicked None 0 0 Unknown
PDU 76 —the zone you clicked None 0 0 Unknown
PDU 77 —the zone you clicked None 0 0 Unknown
PDU 78 —the zone you clicked None 0 0 Unknown
PDU 8 —the zone you clicked None 0 0 Unknown
PDU 80 —the zone you clicked None 0 0 Unknown
PDU 87 —the zone you clicked None 0 0 Unknown
PDU 89 —the zone you clicked None 0 0 Unknown
PDU 9 —the zone you clicked None 0 0 Unknown
PDU 93 —the zone you clicked None 0 0 Unknown
PDU 94 —the zone you clicked None 0 0 Unknown
PDU 95 —the zone you clicked None 0 0 Unknown
PDU 96 —the zone you clicked None 0 0 Unknown
RH1/RM2 —the zone you clicked None 0 0 Unknown
RH1/RS1 —the zone you clicked None 0 0 Unknown
RM1/RM2 —the zone you clicked None 0 0 Unclear
RM1/RS2 —the zone you clicked None 0 0 Unknown
RM2/RO —the zone you clicked None 0 0 Unknown
RM2/RS1 —the zone you clicked None 0 0 Unknown
RM2/RS2 High-Middle Density / General Single-Family (split-zoned parcel)the zone you clicked Residential 0 0 Unclear
RS1/RM2 —the zone you clicked None 0 0 Unknown
RS1/RS2 —the zone you clicked None 0 0 Unknown

Our reading is derived from what is actually built in each district today, not from the code string — a code like R-15 means different things in different Connecticut towns. It is an estimate, and the regulations linked above are the authority.

Where these names come from

Municode's SPA blocks fetchers, so I read the underlying Municode content API directly (library.municode.com/api, productId 19969, node ZOOR_ARIIESDIZOMA_S2DIENMAADIN 'Section 2. - Districts enumerated'). Edition: Zoning Ordinance of the City of New Haven, codified through Ordinance No. 2026-0003, enacted March 16, 2026 (Supp. No. 32). RS-3 is not in the Sec. 2 enumeration but is defined at Sec. 12.5 and is included. Codes with no abbreviation in the ordinance are listed under their ordinance name. UNMATCHED: the numbered PDD/PDU codes in assessor data are individual planned developments created by map amendment under Sec. 65 - the ordinance defines the classes 'Planned Development District' and 'Planned Development Unit' but never names PDD 26, PDD 27, etc., so each numbered instance is returned unmatched. Slash codes (BA/RM2, BB/RS2, RM1/RM2, RM2/RS2, BA/RM1) are split-zoned parcels spanning two districts, not districts, so they are also unmatched. CEM was matched to the ordinance's CEMETERY Districts.