ADU · Westchester County
Can you build an ADU in Bronxville, NY?
Village of Bronxville has 8 districts. All districts prohibit ADUs. Check your address to confirm the district that applies to your parcel:
What the Bronxville 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 AAA | 0.6887 ac | — | 35 ft | No |
| One-Family Residence A | 0.2755 ac | — | 35 ft | No |
| One-Family Residence AA | 0.3444 ac | — | 35 ft | No |
| Two-Story Multiple Residence B | 0.2755 ac | — | 35 ft | No |
| Three-Story Multiple Residence | 0.2755 ac | — | 42 ft | No |
| Six-Story Multiple Residence D | 0.2755 ac | — | 72 ft | No |
| Central Business A | 0.0574 ac | — | 32 ft | No |
| Service Business B | — | — | 42 ft | No |
ADUs vs. short-term rentals in Bronxville
No local short-term-rental law on record - which is not the same as permission for Village of Bronxville. No local STR ordinance found as of Jun 2026; standard village zoning and building codes apply. Bronxville is a predominantly co-op/condo community where board rules may independently restrict STRs. 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 minimum0.2755–0.6887 ac — an ADU still has to fit the district's lot and setback envelope.
- UtilityCon Edison territory.
- Building dept(914) 337-7338
- Last reviewed2026-06-08
ADU FAQ — Bronxville, NY
Are ADUs allowed in Bronxville, NY?
Village of Bronxville has 8 districts. All districts prohibit ADUs. Check your address with the free ADU checker, or confirm with the building department at (914) 337-7338.
Do I need a special permit for an ADU in Bronxville?
No. No district in Village of Bronxville permits an ADU, so there is no permit to apply for. Codes change, so verify with the building department at (914) 337-7338 before ruling it out.
Can I use an ADU as a short-term rental in Bronxville?
No local short-term-rental law on record - which is not the same as permission for Village of Bronxville. 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 Bronxville
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 Bronxville, priced by size.
More on Bronxville: Full zoning for new construction · ADU build cost · House build cost · All Westchester County towns
ADU information for Village of Bronxville 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) 337-7338 before relying on any answer. Source: Offsite / Aldo zoning dataset, municipalData.js.