Sullivan County
Town of Thompson, NY: zoning for new construction
Residential lots in the Town of Thompson run from a 0.92-acre minimum in Suburban Residential District up to 2 acres in Rural Residential District (2), across 8 zoning districts in all. No local short-term-rental law on record - which is not the same as permission. Power here is NYSEG territory. The district table below has the setbacks, height limits and coverage - confirm the specifics with the building department at (845) 794-2500 before you rely on a figure.
Looking specifically at an accessory dwelling unit? See ADU rules for Thompson →
Zoning districts
| District | Min lot | Setbacks F / S / R | Max height | ADU |
|---|---|---|---|---|
| Suburban Residential District | 0.92 ac | 50 / 20 / 50 ft | 30 ft | As of right |
| Rural Residential District (1) | 0.92 ac | 50 / 20 / 50 ft | 30 ft | As of right |
| Rural Residential District (2) | 2 ac | 50 / 20 / 50 ft | 30 ft | As of right |
| Highway Commercial District (1) | 0.46 ac | 40 / 25 / 50 ft | 35 ft | No |
| Highway Commercial District (2) | 0.46 ac | 40 / 25 / 50 ft | 35 ft | No |
| Conservation/Institutional District | 3 ac | 40 / 25 / 50 ft | 35 ft | No |
| Extractive District | 50 ac | 200 / 50 / 50 ft | 35 ft | No |
| Economic Business Growth District | 0.92 ac | 40 / 25 / 50 ft | 35 ft | No |
Short-term rentals
No local short-term-rental law on record - which is not the same as permission. No specific STR local law found as of Jun 2026. Chapter 187 (Rental Property) governs traditional rentals, but no dedicated STR permitting ordinance has been identified as of Jun 2026.
Good to know
- UtilityNYSEG territory.
- Building dept(845) 794-2500
- Last reviewed2026-08-16
Working out a budget? A standard-finish build here runs $195–$256/sq ft , and a conforming lot adds about $13,597 on top - see the full cost to build a house in Thompson, or what an ADU costs here.
Sizing up a specific parcel in Thompson?
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 Sullivan County towns
All Sullivan County zoning: Bethel · Callicoon · Cochecton · Delaware · Fallsburg · Forestburgh · Fremont · Highland · Liberty · Lumberland · Mamakating · Neversink · Rockland · Tusten · Bloomingburg (Village) · Jeffersonville (Village) · Liberty (Village) · Monticello (Village) · Woodridge (Village)
Zoning figures for Town of Thompson are compiled from the municipal code (last reviewed 2026-08-16) 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) 794-2500 before relying on any number. Source: Offsite / Aldo zoning dataset, municipalData.js.