ADU · Monroe County

Can you build an ADU in Brockport, NY?

Village of Brockport has 1 district. The only district prohibits ADUs. Check your address to confirm the district that applies to your parcel:

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What the Brockport code says

No accessory apartment is allowed in O (O Residential Use District), the village's only residential district. The uses listed there do not include a second dwelling unit.

Conditions the code attaches:

Not more than one dwelling shall be erected, placed or occupied on one lot (§ 58-9E).
There shall be but one principal use of any one lot (§ 58-8A(4)).
Accessory buildings and uses are limited to those that usually accompany and are part of a permitted use, along with a garage for up to two cars (§ 58-9A).
A residence in which a bed-and-breakfast establishment is operated shall not contain an accessory apartment (§ 58-9A(9)(b)[5]).
Code enforcement can be reached at (585) 637-5300 ext. 114 before planning any second unit.

What the Brockport 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
O Residential Use District	0.23 ac	30 / 10 / 30 ft	35 ft	No

O Residential Use District - The front yard is 30 ft or the average front setback of existing residences on the same street within 200 ft, whichever is greater (§ 58-9F(1)). Not more than one dwelling may be erected or occupied on one lot.

The Board of Appeals may vary any yard depth or width wherever established yards within 200 ft differ from the chapter (§ 58-9F(6)).
A lot already under 85 ft wide when the chapter was enacted has side yards modified in proportion to its width, one not less than 4 ft and the other not less than 11 ft (§ 58-9F(4)).
A corner lot owes 30 ft along the side lot line next to the side street for the full depth of the lot.
The Zoning Board of Appeals may permit building lots of 65 ft and above on application where smaller lots already exist nearby (§ 58-9H).
Coverage counts one-family dwellings and their accessory structures together, so a detached garage uses the house's allowance.
The floor area shown is for a one-storey house. A two- or three-storey house needs 700 sq ft on the ground floor, a split level 1,100 sq ft and a raised ranch 800 sq ft aboveground (§ 58-9I).

ADUs vs. short-term rentals in Brockport

Short-term rentals allowed with local rules for Village of Brockport. The only path to a paid short stay is an owner-occupied bed-and-breakfast in the O district, run as a home occupation under a special conditional use permit from the Zoning Board of Appeals. The owner must live there full time, so an investor-owned whole-house rental has no path. 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. Municipal source

Good to know

Residential lot minimum0.23 ac — an ADU still has to fit the district's lot and setback envelope.
UtilityRG&E territory.
Zoning codeecode360.com/12205082
Building dept(585) 637-5300 ext. 114

ADU FAQ — Brockport, NY

Are ADUs allowed in Brockport, NY?

Village of Brockport has 1 district. The only district prohibits ADUs. Check your address with the free ADU checker, or confirm with the building department at (585) 637-5300 ext. 114.

Do I need a special permit for an ADU in Brockport?

No. No district in Village of Brockport permits an ADU, so there is no permit to apply for. Codes change, so verify with the building department at (585) 637-5300 ext. 114 before ruling it out.

Can I use an ADU as a short-term rental in Brockport?

Short-term rentals allowed with local rules for Village of Brockport. 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.

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What an ADU costs to build in Brockport

Permission is one question and budget is another. An 800 sq ft accessory unit here runs roughly $200k–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 Brockport, priced by size.

How we know this

Sections analyzed: Ch. 58 § 58-9A and E (O district); § 58-8A(4); § 58-2 definitions; § 58-9A(9)(b)[5] and § 58-11 bed-and-breakfast condition
Districts confirmed: 1 of 1 — every mapped district.
Last reviewed: 2026-08-13
Not covered here: Overlay districts, the zoning map, and any conditions attached to an individual parcel. Size limits and owner-occupancy terms sit in the code section above, not in this summary.

More on Brockport: Full zoning for new construction · ADU build cost · House build cost · ADU rules across Monroe County · All Monroe County towns

ADU information for Village of Brockport is compiled from the municipal code (last reviewed 2026-08-13) 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 (585) 637-5300 ext. 114 before relying on any answer. Source: the Offsite / Aldo zoning dataset.