ADU · Albany County
Can you build an ADU in Watervliet, NY?
City of Watervliet has 10 districts. 9 of 10 districts prohibit ADUs. 1 district has incomplete data - verify with the building department at (518) 270-3800. Check your address to confirm the district that applies to your parcel:
What the Watervliet 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 |
|---|---|---|---|---|
| Business | — | 0 / 0 / 20 ft | 40 ft | No |
| Light Industrial | — | 25 / 10 / 25 ft | 50 ft | No |
| Mixed Use 1 | 0.092 ac | 10 / 3 / 15 ft | 40 ft | No |
| Mixed Use 2 | 0.092 ac | 10 / 3 / 15 ft | 40 ft | No |
| Planned Mixed Use District | — | — | — | — |
| Residential 1 | 0.092 ac | 10 / 3 / 15 ft | 35 ft | No |
| Residential 1A | 0.23 ac | 25 / 10 / 30 ft | 35 ft | No |
| Residential 2 | 0.092 ac | 10 / 3 / 15 ft | 35 ft | No |
| Residential 3 | 0.115 ac | 10 / 5 / 15 ft | 45 ft | No |
| Waterfront Conservation | 0.459 ac | 25 / 10 / 30 ft | 35 ft | No |
ADUs vs. short-term rentals in Watervliet
Short-term rentals allowed with local rules for City of Watervliet. Local Law No. 3-2025, codified at Chapter 176, Article V (effective Sep 4, 2025), requires registry filing with Code Enforcement before operating any STR. Annual fees: $250/building + $100/unit. 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 minimum0.092–0.23 ac — an ADU still has to fit the district's lot and setback envelope.
- UtilityNational Grid territory.
- Building dept(518) 270-3800
- Last reviewed2026-07-08
ADU FAQ — Watervliet, NY
Are ADUs allowed in Watervliet, NY?
City of Watervliet has 10 districts. 9 of 10 districts prohibit ADUs. 1 district has incomplete data - verify with the building department at (518) 270-3800. Check your address with the free ADU checker.
Do I need a special permit for an ADU in Watervliet?
9 of 10 districts prohibit ADUs, so no permit applies in those. 1 district has incomplete data - verify with the building department at (518) 270-3800.
Can I use an ADU as a short-term rental in Watervliet?
Short-term rentals allowed with local rules for City of Watervliet. 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 Watervliet
Permission is one question and budget is another. An 800 sq ft accessory unit here runs roughly $195k–260k 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 Watervliet, priced by size.
More on Watervliet: Full zoning for new construction · ADU build cost · House build cost · All Albany County towns
ADU information for City of Watervliet is compiled from the municipal code (last reviewed 2026-07-08) 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 (518) 270-3800 before relying on any answer. Source: Offsite / Aldo zoning dataset, municipalData.js.