ADU · Monroe County

Can you build an ADU in Churchville, NY?

Village of Churchville has 3 districts. 2 districts allow ADUs with a special-use permit, 1 does not. Check your address to confirm the district that applies to your parcel:

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What the Churchville code says

An accessory dwelling unit needs a special permit in LDR and TVR, and MDR has no accessory dwelling unit route. Its floor area, owner occupancy, parking and whether it may be detached are not confirmed.

Conditions the code attaches:

LDR permits a single-family dwelling only; two-family, townhome and multifamily dwellings are barred.
TVR adds two-family, townhome and multifamily under 5 units by special permit.
MDR permits two-family, townhome and multifamily under 5 units by right, and multifamily of 5 to 12 units by special permit.
Multifamily in TVR and MDR runs on 5,500 sq ft of land per dwelling unit.
Building Inspector: (585) 293-3720 x119.

What the Churchville 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	0.28 ac	35 / 8 / 25 ft	35 ft	Special permit
Traditional Village Residential	0.18 ac	20 / 8 / 25 ft	35 ft	Special permit
Mixed Density Residential	0.23 ac	25 / 10 / 30 ft	35 ft	No

Low Density Residential - Any front, side or rear yard may instead follow the most common yard space on the block, within a margin of plus or minus one foot.

A nonresidential use takes 20,000 sq ft on 80 ft of width, with a 15 ft side yard and a 35 ft rear yard.
A municipal structure, place of worship, public park, public utility and school are permitted by right; a nursing home, day-care facility and bed-and-breakfast each need a special permit.
Only a single-family dwelling is permitted; two-family, townhome and multifamily dwellings are prohibited, and an additional unit is possible only as an accessory dwelling unit on a special permit.
Accessory structures need an 8 ft side yard and a 5 ft rear yard and are capped at 15 ft in height.

Traditional Village Residential - Any front, side or rear yard may instead follow the most common yard space on the block, within a margin of plus or minus one foot.

A two-family dwelling or townhome takes 10,000 sq ft rather than the 8,000 a single-family needs, on the same 50 ft of width, and needs a special permit.
A multifamily dwelling is stated per dwelling unit at 5,500 sq ft each on 70 ft of width, with no flat lot minimum, so an acre supports about 7 units before the coverage cap is tested.
A nonresidential use takes 20,000 sq ft on 80 ft of width, with a 15 ft side yard and a 35 ft rear yard.
Multifamily buildings are limited to under five units; a building of five to twelve units is prohibited.
Accessory structures need an 8 ft side yard and a 5 ft rear yard and are capped at 15 ft in height.

Mixed Density Residential - Any front, side or rear yard may instead follow the most common yard space on the block, within a margin of plus or minus one foot.

A two-family dwelling or townhome takes 12,000 sq ft rather than the 10,000 a single-family needs, on the same 60 ft of width, so the second unit costs 2,000 sq ft of land.
A multifamily dwelling is stated per dwelling unit at 5,500 sq ft each on 70 ft of width, with no flat lot minimum, and nothing above twelve units is permitted anywhere in the village.
A nonresidential use takes 20,000 sq ft on 80 ft of width, with a 15 ft side yard and a 35 ft rear yard.
A two-family dwelling or townhome and a multifamily building of under five units are permitted by right, and a building of five to twelve units needs a special permit.
There is no accessory dwelling unit route in this district.
Accessory structures need a 10 ft side yard and an 8 ft rear yard and are capped at 15 ft in height.

ADUs vs. short-term rentals in Churchville

No local short-term-rental law on record - which is not the same as permission for Village of Churchville. The Village of Churchville has no local short-term rental law, and that is not the same as permission. Confirm with the Building Inspector before counting on renting a home short term. 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 minimum0.18–0.28 ac — an ADU still has to fit the district's lot and setback envelope.
UtilityRG&E territory.
Zoning codeecode360.com/34187694
Building dept(585) 293-3720 x119

ADU FAQ — Churchville, NY

Are ADUs allowed in Churchville, NY?

Village of Churchville has 3 districts. 2 districts allow ADUs with a special-use permit, 1 does not. Check your address with the free ADU checker, or confirm with the building department at (585) 293-3720 x119.

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

It depends on the district: 2 of 3 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 Churchville?

No local short-term-rental law on record - which is not the same as permission for Village of Churchville. 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.

Run the free ADU check for your parcel →

What an ADU costs to build in Churchville

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 Churchville, priced by size.

How we know this

Sections analyzed: Ch. 250 Table 250-13 use table, row 5 Accessory dwelling unit; district use lists for LDR, TVR and MDR
Districts confirmed: 3 of 3 — 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 Churchville: 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 Churchville 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) 293-3720 x119 before relying on any answer. Source: the Offsite / Aldo zoning dataset.