ADU · Orange County
Can you build an ADU in Washingtonville, NY?
Village of Washingtonville has 11 districts. All districts prohibit ADUs. Check your address to confirm the district that applies to your parcel:
What the Washingtonville code indicates by district
The table below shows how each district treats ADUs, alongside the lot and setback standards that govern a second unit. District boundaries and conditions vary, so treat this as a starting point and confirm the district that applies to your parcel.
| District | Min lot | Setbacks F / S / R | Max height | ADU |
|---|---|---|---|---|
| Residential-Agricultural | 0.918 ac | 45 / 20 / 50 ft | 35 ft | No |
| Residential | 0.459 ac | 40 / 15 / 50 ft | 35 ft | No |
| Residential | 0.459 ac | 40 / 15 / 50 ft | 35 ft | No |
| Multifamily Residential | 0.23 ac | 50 / 30 / 50 ft | 35 ft | No |
| Mobile Home Court Residential | 0.344 ac | 40 / 12 / 25 ft | 35 ft | No |
| Multiple Residence District | 0.126 ac | 35 / 5 / 25 ft | 35 ft | No |
| Office-Residential | 0.344 ac | 40 / 15 / 50 ft | 35 ft | No |
| Neighborhood Business | 1.837 ac | 60 / 40 / 45 ft | 35 ft | No |
| General Business | 1.837 ac | 60 / 40 / 45 ft | 35 ft | No |
| Office & Light Industry | 0.918 ac | 45 / 20 / 45 ft | 35 ft | No |
| Industrial | 0.918 ac | 40 / 25 / 40 ft | 35 ft | No |
ADUs vs. short-term rentals in Washingtonville
Short-term rentals allowed with local rules for Village of Washingtonville. Rental Properties Local Law (~2021) prohibits short-term rentals in residential districts; permits administered via the Building Department. These are separate questions from whether you can build an ADU — a unit you're allowed to add isn't automatically one you're allowed to rent nightly, so check both.
Good to know
- Residential lot minimum0.126–0.918 ac — an ADU still has to fit the district's lot and setback envelope.
- UtilityOrange & Rockland territory.
- Building dept(845) 496-3221
- Last reviewed2026-07-12
ADU FAQ — Washingtonville, NY
Are ADUs allowed in Washingtonville, NY?
Village of Washingtonville has 11 districts. All districts prohibit ADUs. Check your address with the free ADU checker, or confirm with the building department at (845) 496-3221.
Do I need a special permit for an ADU in Washingtonville?
No. No district in Village of Washingtonville permits an ADU, so there is no permit to apply for. Codes change, so verify with the building department at (845) 496-3221 before ruling it out.
Can I use an ADU as a short-term rental in Washingtonville?
Short-term rentals allowed with local rules for Village of Washingtonville. ADU occupancy and short-term-rental rules are separate: an ADU you can build isn't automatically one you can rent nightly. Confirm both before you count on STR income.
What an ADU costs to build in Washingtonville
Permission is one question and budget is another. An 800 sq ft accessory unit here runs roughly $205k–270k at a standard finish, and the per-square-foot rate comes in above a full house because the kitchen, bath, panel and heating plant cost the same either way. See the full cost to build an ADU in Washingtonville, priced by size.
More on Washingtonville: Full zoning for new construction · ADU build cost · House build cost · All Orange County towns
ADU information for Village of Washingtonville is compiled from the municipal code (last reviewed 2026-07-12) and provided for decision-support only — not legal or architectural advice. ADU eligibility, size, owner-occupancy and permit conditions vary by district and often carry exceptions; verify with the building department at (845) 496-3221 before relying on any answer. Source: Offsite / Aldo zoning dataset, municipalData.js.