Mount Vernon zoning caps the share of a residential lot that can be covered by buildings — typically 25–35% in R1A/R2 and higher in multifamily and commercial districts.
Maximum lot coverage (the portion of a lot occupied by principal and accessory buildings) is set per zoning district in the Mount Vernon Zoning Ordinance. Typical single-family R1A coverage caps fall in the 25–30% range; R2/R3 two- and multifamily zones allow more; MR, R4-4 and commercial districts allow the highest coverage. Accessory structures (sheds, garages, carports, pools' equipment pads) count toward the cap.
Denial of building permit; zoning violation notice; requirement to reduce coverage or obtain area variance.
Mount Vernon, NY
Mount Vernon operates alternate-side parking for street cleaning and enforces residential permit parking in several districts. Non-residents cannot park over...
Mount Vernon, NY
Driveways must be paved, properly permitted curb cuts, and cannot block sidewalks. Parking on front lawns or unpaved areas is prohibited in residential zones.
Mount Vernon, NY
Recreational vehicles, boats, and trailers are generally prohibited from parking on public streets and in front-yard setbacks in residential zones. Storage i...
Mount Vernon, NY
Retaining walls over 4 ft measured from bottom of footing to top of wall require a building permit and sealed engineered drawings. Walls with surcharge (driv...
Mount Vernon, NY
A building permit from the Mount Vernon Building Department is required for most new fences and for replacements that change height, materials, or location. ...
Mount Vernon, NY
Chickens and livestock are prohibited in Mount Vernon residential zones. The city's dense urban character (~4 sq mi) excludes agricultural uses from zoning.
Side-by-side rule comparisons with other cities in Westchester County.
See how other cities in Westchester County handle lot coverage limits.
See how Mount Vernon's lot coverage limits rules stack up against other locations.
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