Orange County
Town of Cornwall, NY: zoning for new construction
Residential lots in the Town of Cornwall run from a 0.46-acre minimum in Suburban Residential 2 up to 10 acres in Mountain Conservation Residential, across 11 zoning districts in all. Short-term rentals allowed with local rules. Power here is Central Hudson territory. The district table below has the setbacks, height limits and coverage - confirm the specifics with the building department at (845) 534-9429 before you rely on a figure.
Looking specifically at an accessory dwelling unit? See ADU rules for Cornwall →
Zoning districts
| District | Min lot | Setbacks F / S / R | Max height | ADU |
|---|---|---|---|---|
| Mountain Conservation Residential | 10 ac | 100 / 50 / 100 ft | 40 ft | Occupancy restricted |
| Agricultural Rural Residential | 3 ac | 75 / 30 / 75 ft | 40 ft | Occupancy restricted |
| Suburban Low-Density Residential | 2 ac | 60 / 30 / 60 ft | 40 ft | Occupancy restricted |
| Medium Residential | 2 ac | 60 / 30 / 60 ft | 40 ft | Occupancy restricted |
| Suburban Residential 1 | 1 ac | 50 / 30 / 40 ft | 35 ft | Occupancy restricted |
| Suburban Residential 2 | 0.46 ac | 30 / 15 / 30 ft | 35 ft | Occupancy restricted |
| Limited Service | 0.23 ac | 30 / 0 / 0 ft | 35 ft | No |
| General Commercial | 0.115 ac | 30 / 0 / 0 ft | 55 ft | No |
| Highway Commercial | 0.23 ac | 55 / 20 / 35 ft | 35 ft | Occupancy restricted |
| Planned Commercial Development | — | — | — | No |
| Planned Industrial/Office | — | — | — | Occupancy restricted |
Short-term rentals
Short-term rentals allowed with local rules. Short-term rentals regulated under Local Law No. 3-2019 (Chapter 120). Permit required.
Good to know
- UtilityCentral Hudson territory.
- Building dept(845) 534-9429
- Last reviewed2026-07-08
Working out a budget? A standard-finish build here runs $211–$276/sq ft , and a conforming lot adds about $10,451 on top - see the full cost to build a house in Cornwall, or what an ADU costs here.
Sizing up a specific parcel in Cornwall?
Aldo pulls the exact zoning district, setbacks, and build feasibility for any parcel — before you buy. Enter your email to open Aldo and run your free report.
Other Orange County towns
All Orange County zoning: Middletown (City) · Newburgh (City) · Port Jervis (City) · Blooming Grove · Chester · Crawford · Deerpark · Goshen · Greenville · Hamptonburgh · Highlands · Minisink · Monroe · Montgomery · Mount Hope · New Windsor · Newburgh · Palm Tree · Tuxedo · Wallkill · Warwick · Wawayanda · Chester (Village) · Cornwall-on-Hudson (Village) · Florida (Village) · Goshen (Village) · Greenwood Lake (Village) · Harriman (Village) · Highland Falls (Village) · Kiryas Joel (Village) · Maybrook (Village) · Monroe (Village) · Montgomery (Village) · Otisville (Village) · South Blooming Grove (Village) · Tuxedo Park (Village) · Walden (Village) · Warwick (Village) · Washingtonville (Village) · Woodbury (Village)
Zoning figures for Town of Cornwall are compiled from the municipal code (last reviewed 2026-07-08) 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 (845) 534-9429 before relying on any number. Source: Offsite / Aldo zoning dataset, municipalData.js.