ADU · Albany County
Can you build an ADU in Coeymans, NY?
Town of Coeymans has 13 districts. 7 districts prohibit ADUs, 6 allow them with occupancy restrictions. Check your address to confirm the district that applies to your parcel:
What the Coeymans 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 |
|---|---|---|---|---|
| General Business | 0.574 ac | 15 / 15 / 15 ft | 60 ft | No |
| Planned Commercial | 0.57 ac | 15 / 15 / 15 ft | — | Occupancy restricted |
| Community Facility - 1 | — | 25 / 25 / 25 ft | — | Occupancy restricted |
| Community Facility - 2 | — | — | — | Occupancy restricted |
| Industrial - 1 | 0.918 ac | 50 / 50 / 50 ft | — | Occupancy restricted |
| Industrial - 2 | 0.918 ac | 50 / 50 / 50 ft | — | Occupancy restricted |
| Planned Industrial | 0.918 ac | 50 / 50 / 50 ft | — | Occupancy restricted |
| Industrial Buffer | — | — | — | No |
| Single-Family Residence | 0.344 ac | 25 / 15 / 40 ft | 35 ft | No |
| Single & Two Family Residence | 0.23 ac | 25 / 10 / 15 ft | 30 ft | No |
| Multifamily Residence | — | 15 / 15 / 20 ft | 40 ft | No |
| Planned Residential | 0.344 ac | 25 / 15 / 15 ft | 30 ft | No |
| Residential & Agricultural | 1.836 ac | 40 / 30 / 50 ft | 40 ft | No |
ADUs vs. short-term rentals in Coeymans
No local short-term-rental law on record - which is not the same as permission for Town of Coeymans. No local STR ordinance found as of Jun 2026. Hosts are subject to the 2025 NYS statewide STR registry law only. 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 minimum0.23–1.836 ac — an ADU still has to fit the district's lot and setback envelope.
- UtilityNational Grid territory.
- Building dept(518) 756-2850
- Last reviewed2026-07-08
ADU FAQ — Coeymans, NY
Are ADUs allowed in Coeymans, NY?
Town of Coeymans has 13 districts. 7 districts prohibit ADUs, 6 allow them with occupancy restrictions. Check your address with the free ADU checker, or confirm with the building department at (518) 756-2850.
Do I need a special permit for an ADU in Coeymans?
No district in Town of Coeymans requires a special-use permit for an ADU - 7 districts prohibit ADUs, 6 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 Coeymans?
No local short-term-rental law on record - which is not the same as permission for Town of Coeymans. 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 Coeymans
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 Coeymans, priced by size.
More on Coeymans: Full zoning for new construction · ADU build cost · House build cost · All Albany County towns
ADU information for Town of Coeymans 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) 756-2850 before relying on any answer. Source: Offsite / Aldo zoning dataset, municipalData.js.