Aldo

Westchester County

Town of Mamaroneck, NY: zoning for new construction

17 districts Min lot 0.0344–50 ac Con Edison

Thinking about building in the Town of Mamaroneck? Here is what the zoning actually says, pulled straight from the town code. Town of Mamaroneck runs 17 zoning districts, with residential minimum lot sizes ranging from 0.0344 to 50 acres depending on the district. Short-term rentals - see local ordinance here. Use the district figures below to size up a parcel before you buy, then confirm the specifics with the building department.

Zoning districts

District Min lot Setbacks F / S / R Max height ADU
One-Family Residence 1.1478 ac — 35 ft As of right
One-Family Residence 0.6887 ac — 35 ft As of right
One-Family Residence 0.2296 ac — 35 ft As of right
One-Family Residence 0.3444 ac — 35 ft As of right
One-Family Residence 0.4591 ac — 35 ft As of right
Two-Family Residence 0.1148 ac — 35 ft As of right
One-Family Residence 0.1377 ac — 35 ft As of right
One-Family Residence 0.1722 ac — 35 ft As of right
Garden Apartment 0.0803 ac — 35 ft As of right
Attached Residence 0.0574 ac — 35 ft As of right
Tower Apartment 0.0344 ac — 70 ft As of right
Business - Mixed Use Business 1.8365 ac — 60 ft No
Light Industry — — 30 ft As of right
Business Residential — — — No
Service Business Residential — — — No
Urban Renewal 0.9183 ac — 44 ft As of right
Recreation 50 ac — 35 ft As of right

Short-term rentals

Short-term rentals - see local ordinance. No local STR ordinance specific to the Town of Mamaroneck found as of Jun 2026; standard town zoning and building codes apply.

Good to know

Sizing up a specific parcel in Mamaroneck?

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Other Westchester County towns

City of Harrison
19 districts
City of Mount Vernon
19 districts
City of New Rochelle
38 districts
City of Peekskill
25 districts
City of Rye
24 districts
City of White Plains
33 districts

Zoning figures for Town of Mamaroneck are compiled from the municipal code (last reviewed 2026-06-08) and provided for decision-support only - not legal, engineering, or architectural advice. Setback and dimensional standards often carry conditions and exceptions; verify with the building department at (914) 381-7830 before relying on any number. Source: Offsite / Aldo zoning dataset, municipalData.js.