ADU · Westchester County
Can you build an ADU in Tarrytown, NY?
Village of Tarrytown has 24 districts. 15 districts prohibit ADUs, 9 allow them with occupancy restrictions. Check your address to confirm the district that applies to your parcel:
What the Tarrytown 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 |
|---|---|---|---|---|
| One-Family Residence | 1.3774 ac | — | 30 ft | Occupancy restricted |
| One-Family Residence | 1.8365 ac | — | 30 ft | Occupancy restricted |
| Historic Commons | 5 ac | — | 35 ft | No |
| One-Family Residence | 0.6887 ac | — | 30 ft | Occupancy restricted |
| One-Family Residence | 0.9183 ac | — | 30 ft | Occupancy restricted |
| One-Family Residence | 0.2296 ac | — | 30 ft | Occupancy restricted |
| One-Family Residence | 0.3444 ac | — | 30 ft | Occupancy restricted |
| One-Family Residence | 0.4591 ac | — | 30 ft | Occupancy restricted |
| One-Family Residence | 0.1148 ac | — | 30 ft | Occupancy restricted |
| One-Family Residence | 0.1722 ac | — | 30 ft | Occupancy restricted |
| Multi-Family Residence | 0.3444 ac | — | 35 ft | No |
| Multi-Family Residence | 0.4591 ac | — | 35 ft | No |
| Multi-Family Residence | 0.1148 ac | — | 35 ft | No |
| Multi-Family Residence | 0.1722 ac | — | 35 ft | No |
| Multi-Family Residence | 0.2296 ac | — | 35 ft | No |
| Office Building | 0.3444 ac | — | 35 ft | No |
| General Business | 0.1148 ac | — | 35 ft | No |
| Limited Business | 1 ac | — | 35 ft | No |
| Neighborhood Shopping | 0.1148 ac | — | 35 ft | No |
| Restricted Retail | 0.1148 ac | — | 35 ft | No |
| Industrial | — | — | 40 ft | No |
| Waterfront General Business District | 0.4 ac | — | 25 ft | No |
| Mixed Use | — | — | — | No |
| Waterfront | 0.4 ac | — | 25 ft | No |
ADUs vs. short-term rentals in Tarrytown
No local short-term-rental law on record - which is not the same as permission for Village of Tarrytown. No local STR ordinance found as of Jun 2026; renting an entire dwelling as a primary residence is permitted under existing zoning. Standard village codes apply. 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 minimum0.1148–1.8365 ac — an ADU still has to fit the district's lot and setback envelope.
- UtilityCon Edison territory.
- Building dept(914) 631-3668
- Last reviewed2026-06-08
ADU FAQ — Tarrytown, NY
Are ADUs allowed in Tarrytown, NY?
Village of Tarrytown has 24 districts. 15 districts prohibit ADUs, 9 allow them with occupancy restrictions. Check your address with the free ADU checker, or confirm with the building department at (914) 631-3668.
Do I need a special permit for an ADU in Tarrytown?
No district in Village of Tarrytown requires a special-use permit for an ADU - 15 districts prohibit ADUs, 9 allow them with occupancy restrictions. Site-plan review or a building permit may still apply.
Can I use an ADU as a short-term rental in Tarrytown?
No local short-term-rental law on record - which is not the same as permission for Village of Tarrytown. 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 Tarrytown
Permission is one question and budget is another. An 800 sq ft accessory unit here runs roughly $235k–310k 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 Tarrytown, priced by size.
More on Tarrytown: Full zoning for new construction · ADU build cost · House build cost · All Westchester County towns
ADU information for Village of Tarrytown is compiled from the municipal code (last reviewed 2026-06-08) 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 (914) 631-3668 before relying on any answer. Source: Offsite / Aldo zoning dataset, municipalData.js.