ADU · Albany County
Can you build an ADU in Rensselaerville, NY?
Town of Rensselaerville has 6 districts. All districts allow ADUs with occupancy restrictions. Check your address to confirm the district that applies to your parcel:
What the Rensselaerville 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 |
|---|---|---|---|---|
| Agricultural/Rural Residential | 5 ac | 50 / 50 / 50 ft | 35 ft | Occupancy restricted |
| Crystal Lake | 2 ac | 15 / 15 / 15 ft | 35 ft | Occupancy restricted |
| Hamlet | 0.5 ac | 15 / 15 / 15 ft | 35 ft | Occupancy restricted |
| Resource Conservation 1 | 15 ac | 50 / 50 / 50 ft | 35 ft | Occupancy restricted |
| Resource Conservation 2 | 15 ac | 50 / 50 / 50 ft | 35 ft | Occupancy restricted |
| Resource Conservation 3 | 15 ac | 50 / 50 / 50 ft | 35 ft | Occupancy restricted |
ADUs vs. short-term rentals in Rensselaerville
No local short-term-rental law on record - which is not the same as permission for Town of Rensselaerville. No local short-term-rental law found as of 2026-08-26; the Town Zoning Law was read in full and contains no short-term-rental, transient-rental or rental-registration provision. Section 18 governs BED AND BREAKFAST ESTABLISHMENTS — an owner-occupied dwelling renting no more than ten rooms to transient fee-paying guests with not more than one meal daily — and a BOARDING HOUSE providing transient lodging and meals for compensation is separately defined and listed. The code also notes that agritourism may include an on-farm bed-and-breakfast or farm-stay. All are owner-present or managed lodging uses and none reaches an unhosted whole-house rental. Absence of a found STR law is not permission. New York State's 2025 short-term rental registry (Ch. 99 of the Laws of 2025) separately requires every host statewide to register the unit regardless of local law. Confirm with Town of Rensselaerville at (518) 239-4225 before listing. 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 minimum0.5–5 ac — an ADU still has to fit the district's lot and setback envelope.
- UtilityNational Grid territory.
- Building dept(518) 239-4225
- Last reviewed2026-07-08
ADU FAQ — Rensselaerville, NY
Are ADUs allowed in Rensselaerville, NY?
Town of Rensselaerville has 6 districts. All districts allow ADUs with occupancy restrictions. Check your address with the free ADU checker, or confirm with the building department at (518) 239-4225.
Do I need a special permit for an ADU in Rensselaerville?
No district in Town of Rensselaerville requires a special-use permit for an ADU - 6 districts allow ADUs with occupancy restrictions. Site-plan review or a building permit may still apply.
Can I use an ADU as a short-term rental in Rensselaerville?
No local short-term-rental law on record - which is not the same as permission for Town of Rensselaerville. 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 Rensselaerville
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 Rensselaerville, priced by size.
More on Rensselaerville: Full zoning for new construction · ADU build cost · House build cost · All Albany County towns
ADU information for Town of Rensselaerville 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) 239-4225 before relying on any answer. Source: Offsite / Aldo zoning dataset, municipalData.js.