ADU · Sullivan County
Can you build an ADU in Liberty, NY?
Village of Liberty has 5 districts. 3 districts allow ADUs with a special-use permit, 1 does not, 1 allows them with occupancy restrictions. Check your address to confirm the district that applies to your parcel:
What the Liberty 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 |
|---|---|---|---|---|
| Low Density Residential | 0.23 ac | 25 / 10 / 30 ft | 35 ft | Special permit |
| High Density Residential | 0.16 ac | 25 / 8 / 30 ft | 35 ft | Special permit |
| Commercial | 0.09 ac | 20 / 10 / 10 ft | 44 ft | Special permit |
| Downtown Commercial Core | 0.09 ac | 20 / 0 / 0 ft | 44 ft | Occupancy restricted |
| Manufacturing | 0.09 ac | 20 / 50 / 50 ft | 44 ft | No |
ADUs vs. short-term rentals in Liberty
No local short-term-rental law on record - which is not the same as permission for Village of Liberty. No local STR ordinance found as of Jun 2026. The Village of Liberty has not enacted a specific STR permitting law beyond Sullivan County room tax registration. 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 minimum0.16–0.23 ac — an ADU still has to fit the district's lot and setback envelope.
- UtilityNYSEG territory.
- Building dept(845) 292-8511
- Last reviewed2026-08-16
ADU FAQ — Liberty, NY
Are ADUs allowed in Liberty, NY?
Village of Liberty has 5 districts. 3 districts allow ADUs with a special-use permit, 1 does not, 1 allows them with occupancy restrictions. Check your address with the free ADU checker, or confirm with the building department at (845) 292-8511.
Do I need a special permit for an ADU in Liberty?
It depends on the district: 3 of 5 require a special-use permit, the rest do not. Check the district that applies to your parcel before you design.
Can I use an ADU as a short-term rental in Liberty?
No local short-term-rental law on record - which is not the same as permission for Village of Liberty. 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 Liberty
Permission is one question and budget is another. An 800 sq ft accessory unit here runs roughly $190k–250k 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 Liberty, priced by size.
More on Liberty: Full zoning for new construction · ADU build cost · House build cost · All Sullivan County towns
ADU information for Village of Liberty is compiled from the municipal code (last reviewed 2026-08-16) 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) 292-8511 before relying on any answer. Source: Offsite / Aldo zoning dataset, municipalData.js.