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ADU · Monroe County

Can you build an ADU in Greece, NY?

Town of Greece has 12 districts. 8 districts prohibit ADUs, 4 allow them with occupancy restrictions. Check your address to confirm the district that applies to your parcel:

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What the Greece code says

Greece has no general accessory dwelling unit allowance. The residential route is one in-law apartment per one-family dwelling, and it is occupancy restricted to a relative by marriage of the resident family, so it is not a unit that can be rented on the open market.

Conditions the code attaches:

What the Greece 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
Single-Family Residential (R1-44) 1.01 ac 70 / 20 / 70 ft — Occupancy restricted
Single-Family Residential (R1-18) 0.41 ac 50 / 10 / 50 ft — Occupancy restricted
Single-Family Residential (R1-10) 0.23 ac 25 / 6 / 40 ft — Occupancy restricted
Single-Family Residential — Established Neighborhood (R1-E) — 25 / 6 / 30 ft — Occupancy restricted
Multiple-Family Residential (RM) 3 ac 100 / 50 / 50 ft — No
Senior Citizen Residential (RS) 5 ac 100 / 50 / 50 ft — No
Professional Business (BP) 0.28 ac 30 / 15 / 15 ft 40 ft No
Restricted Business (BR) 0.34 ac 30 / 15 / 15 ft — No
General Business (BG) 0.46 ac 30 / 20 / 20 ft — No
Flexible Office-Industrial (FOI) 1 ac 100 / 0 / 0 ft — No
Light Industrial (IL) 3 ac 100 / 25 / 25 ft — No
General Industrial (IG) 5 ac 100 / 25 / 25 ft — No

Single-Family Residential (R1-44) - The 70 ft front setback is a floor: on a lot adjoining lots with buildings on the same side of the street, the required front setback is the greater of that figure and the neighbourhood average (§ 211-11D(1)). The planning board may require cluster development here.

  • A corner lot takes 55,000 sq ft of area and 185 ft of width, larger than the interior lot figures shown.
  • A minimum front lot line of 50 ft applies in addition to the lot width.
  • On a Town highway with a right-of-way under 50 ft, front setback is measured from the centreline plus 30 ft; on a Monroe County highway under 80 ft other than Dewey Avenue, plus 50 ft.
  • On Deming Street, Gates-Greece Town Line Road, Janes Road, Ling Road, Maiden Lane, Peck Road or Post Avenue, measure from the centreline and add 45 ft.
  • Minimum dwelling area: 1,500 sq ft for one storey; 1,250 sq ft first floor and 2,000 sq ft total at one and a half storeys; 1,100 sq ft first floor and 2,200 sq ft total at two storeys.
  • Accessory building floor area is capped at 800 sq ft on a lot up to 16,000 sq ft, 1,000 sq ft from 16,000 sq ft to an acre, and 1,250 sq ft above an acre, and never more than the principal structure.

Single-Family Residential (R1-18) - The 50 ft front setback is a floor. On a lot adjoining built lots on the same side of the street, the front setback is the greater of that figure and the neighbourhood average, and on several classes of road it is measured from the centreline with extra distance added.

  • Corner lots take a larger lot than interior ones: 22,500 sq ft of area and 125 ft of width.
  • The Planning Board may require cluster development here, so a conventional subdivision layout is not guaranteed.
  • A minimum front lot line of 50 ft applies in addition to the lot width requirement.
  • Minimum dwelling unit area varies with storeys: 1,000 sq ft on the first floor and 1,500 sq ft total for one-and-a-half storeys, 1,000 sq ft on the first floor and 1,700 sq ft total for two storeys.
  • Add 30 ft from the centreline on a Town highway with a right-of-way under 50 ft, and 50 ft on a Monroe County highway with a right-of-way under 80 ft other than Dewey Avenue.
  • Add 45 ft on Deming Street, Gates-Greece Town Line Road, Janes Road, Ling Road, Maiden Lane, Peck Road or Post Avenue, and 10 ft where the lot contains a private road or easement serving other lots.

Single-Family Residential (R1-10) - The 25 ft front setback is a floor. On a lot adjoining lots with buildings on the same side of the street, the front setback is the greater of the district figure and the neighborhood average, and on some roads it is measured from the road centerline with feet added.

  • A corner lot must have 12,500 sq ft of area and 90 ft of width, larger than the interior lot figures shown.
  • On a Town highway with a right-of-way under 50 ft, measure from the centerline and add 30 ft; on a Monroe County highway with a right-of-way under 80 ft other than Dewey Avenue, add 50 ft.
  • Where the lot contains a private road, driveway or easement serving other lots, the front setback is measured from that centerline plus 10 ft.
  • A minimum front lot line of 40 ft applies on top of the lot width requirement.
  • The Planning Board may require cluster development here, so a conventional subdivision is not guaranteed.
  • Minimum dwelling area is 1,000 sq ft for one storey, 850 sq ft on the first floor with 1,100 sq ft total for one and a half storeys, and 700 sq ft on the first floor with 1,200 sq ft total for two.

Single-Family Residential — Established Neighborhood (R1-E) - This district publishes no minimum lot area, width or depth. Each is the neighbourhood average taken from the adjoining lot in both directions on the same side of the street, and a corner lot must reach 125% of that average in area and width.

  • A minimum front lot line of 40 ft is the one fixed lot dimension.
  • The rear yard is 30% of the lot depth or 30 ft, whichever is greater, so a deeper lot gives up more than the figure shown.
  • The side yard is 10% of the lot width, never under 6 ft and never over 10 ft.
  • Front setback is measured from the road centreline: add 30 ft on a Town highway with a right-of-way under 50 ft, or 50 ft on a Monroe County highway under 80 ft other than Dewey Avenue.
  • Add 45 ft from the centreline on Deming Street, Gates-Greece Town Line Road, Janes Road, Ling Road, Maiden Lane, Peck Road or Post Avenue.
  • Accessory building floor area is capped at 800 sq ft on a lot up to 16,000 sq ft, 1,000 sq ft from 16,000 sq ft to an acre and 1,250 sq ft above an acre, and cannot exceed the principal structure.

Multiple-Family Residential (RM) - The 3 acre figure is a minimum district area, not a lot minimum, and the Town Board may waive it. Yield is set by the density limit instead.

  • The three setback figures are not front, side and rear: the 100 ft setback applies from a street right-of-way exterior to the district, dropping to 25 ft for a single-family home.
  • The setback from the boundary of another RM or RS district is 25 ft, and the setback from the boundary of any other district is 50 ft.
  • The front setback is measured from the road centreline: add 30 ft on a Town highway with a right-of-way under 50 ft, and add 45 ft on Deming Street, Janes Road, Ling Road and other named roads.
  • On a Monroe County highway with a right-of-way under 80 ft other than Dewey Avenue, add 50 ft. Where the lot contains a private road, driveway or easement serving other lots, add 10 ft.
  • A minimum front lot line of 50 ft applies, and setbacks are measured to the foundation.
  • Parking is allowed inside the 100 ft setback but no closer than 50 ft to the street right-of-way, and no parking area or driveway may come within 30 ft of a lot line.

Senior Citizen Residential (RS) - The 5 acre figure is a minimum district area rather than a lot minimum, and the Town Board may waive it, so yield comes from the density instead: 15 dwelling units per acre, or 20 residential units per acre, either of which the Town Board may increase.

  • The three setback figures are not front, side and rear. The 100 ft setback applies from a street right-of-way exterior to the district, dropping to 25 ft for a single-family home.
  • A 25 ft setback applies from the boundary of another RM or RS district, and 50 ft from the boundary of any other district.
  • A three-bedroom unit is not permitted in RS.
  • Front setback is measured from the road centreline on some roads: add 30 ft on a Town highway with a right-of-way under 50 ft, or 50 ft on a Monroe County highway under 80 ft other than Dewey Avenue.
  • A minimum front lot line of 50 ft applies, and no parking area or driveway may come within 30 ft of a lot line.
  • The Town Board may increase the three-story limit under § 211-13D or § 211-14D(1). An accessory building is limited to one story and may never exceed the tallest principal building.

Professional Business (BP) - The 30 ft front setback is a minimum only, with the neighbourhood average acting as the maximum, and on several classes of road it is measured from the road centreline with 30 ft, 45 ft or 50 ft added.

  • A corner lot takes 15,000 sq ft on 100 ft of width in place of the interior lot figures shown.
  • A minimum front lot line of 50 ft applies.
  • No parking area or driveway may come within 20 ft of a front lot line, reducible by the Planning Board to 10 ft behind a decorative wall no more than 3 ft high.
  • No parking area or driveway may come within 20 ft of a residential district, reducible to 10 ft behind a solid wall at least 6 ft high.
  • Height is capped at two storeys as well as 40 ft.
  • The 1,000 sq ft figure is a minimum gross floor area for the principal building, a floor on size rather than a cap.

Restricted Business (BR) - The 30 ft front setback is a minimum only. The maximum is the neighborhood average, so a building set too far back fails as surely as one set too close, and on several classes of road the front setback is measured from the road centerline with extra distance added.

  • A corner lot takes 18,000 sq ft of lot area on 100 ft of width, in place of the interior lot figures shown.
  • On a town highway with a right-of-way under 50 ft, measure from the centerline and add 30 ft; on a Monroe County highway with a right-of-way under 80 ft other than Dewey Avenue, add 50 ft.
  • On Deming Street, Gates-Greece Town Line Road, Janes Road, Ling Road, Maiden Lane, Peck Road or Post Avenue, add 45 ft. A private road, driveway or easement serving other lots adds 10 ft.
  • A minimum front lot line of 50 ft applies.
  • No parking area or driveway may come within 20 ft of a front lot line, reducible by the Planning Board to 10 ft behind a decorative wall no more than 3 ft high.
  • No parking area or driveway may come within 20 ft of a residential district, reducible to 10 ft behind a solid wall at least 6 ft high.

General Business (BG) - The 30 ft front setback is only the minimum: the maximum is the neighbourhood average, so a building set too far back fails as surely as one set too close. On several classes of road the front setback is measured from the centreline with added distance.

  • A corner lot takes 24,000 sq ft on 100 ft of width, in place of the interior lot figures shown.
  • A minimum front lot line of 50 ft applies.
  • On a Town highway with a right-of-way under 50 ft, measure from the centreline and add 30 ft; on a Monroe County highway with a right-of-way under 80 ft other than Dewey Avenue, add 50 ft.
  • On Deming Street, Gates-Greece Town Line Road, Janes Road, Ling Road, Maiden Lane, Peck Road or Post Avenue, measure from the centreline and add 45 ft.
  • No parking area or driveway may come within 20 ft of a front lot line, reducible by the Planning Board to 10 ft behind a decorative wall no more than 3 ft high.
  • No parking area or driveway may come within 20 ft of a residential district, reducible to 10 ft behind a solid wall at least 6 ft high.

Flexible Office-Industrial (FOI) - Where the lot adjoins a residential district, both the side and rear setbacks rise to 100 ft. The zero side and rear figures apply only where the neighbouring land is in a nonresidential district, so what sits next door drives the buildable area.

  • The 100 ft front setback runs from the street right-of-way, but on several classes of road it is measured from the road centre line with extra distance added, which can shift it by tens of feet.
  • Add 30 ft on a Town highway with a right-of-way under 50 ft, and 45 ft on Deming Street, Gates-Greece Town Line Road, Janes Road, Ling Road, Maiden Lane, Peck Road or Post Avenue.
  • Add 50 ft on a Monroe County highway with a right-of-way under 80 ft other than Dewey Avenue, and 10 ft from the centre line of a private road, driveway or easement on the lot that serves other lots.
  • No parking area or driveway may come within 50 ft of a residential district.
  • A parking area or driveway must also stay 25 ft back from a street right-of-way line, except for a driveway giving direct access to a public street.
  • Setbacks must increase where the State Building Code requires it for occupancy, materials, height or fire resistance, and may drop to zero next to a nonresidential district where that code permits.

Light Industrial (IL) - The 25 ft side and rear setbacks apply where the lot adjoins a nonresidential district. Where the lot adjoins a residential district, both rise to 100 ft.

  • On a Town highway with a right-of-way under 50 ft, measure the front setback from the centerline and add 30 ft; on a Monroe County highway under 80 ft other than Dewey Avenue, add 50 ft.
  • An added 45 ft applies on Deming Street, Gates-Greece Town Line Road, Janes Road, Ling Road, Maiden Lane, Peck Road and Post Avenue, measured from the centerline.
  • Where the lot contains a private road, driveway or easement serving other lots, the front setback is measured from its centerline plus 10 ft.
  • A minimum front lot line of 50 ft applies, and the 1,000 sq ft minimum is a gross floor area for the principal building.
  • No parking area or driveway may come within 50 ft of a residential district; in IL none may sit within 25 ft of a street right-of-way line, except a driveway giving direct access to a public street.
  • Setbacks increase where the State Building Code requires it for occupancy, materials, height or fire resistance, and a setback from a nonresidential district may be reduced to zero where it permits.

General Industrial (IG) - Side and rear setbacks rise to 100 ft where the lot adjoins a residential district, instead of the 25 ft that applies next to a nonresidential district. The front setback is measured from a road centreline and enlarged on several classes of road.

  • On a Town highway with a right-of-way under 50 ft, measure from the centreline and add 30 ft; on a Monroe County highway with a right-of-way under 80 ft other than Dewey Avenue, add 50 ft.
  • Add 45 ft on Deming Street, Gates-Greece Town Line Road, Janes Road, Ling Road, Maiden Lane, Peck Road or Post Avenue; where the lot contains a private road or easement serving other lots, add 10 ft.
  • No parking area or driveway may come within 50 ft of a residential district.
  • No parking area or driveway may sit closer than 50 ft to a street right-of-way line, except a driveway giving direct access to a public street.
  • A minimum front lot line of 50 ft applies.
  • Setbacks must increase where the State Building Code requires it for materials, height or fire resistance, and may drop to zero from a nonresidential district where that code permits.

ADUs vs. short-term rentals in Greece

Short-term rentals allowed with local rules for Town of Greece. Renting a home short term in the Town of Greece requires a short-term rental property permit from the Town under § 162A-7. That requirement sits in Chapter 162A, Rental Properties, separate from the zoning chapter. 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

ADU FAQ — Greece, NY

Are ADUs allowed in Greece, NY?

Town of Greece has 12 districts. 8 districts prohibit ADUs, 4 allow them with occupancy restrictions. Check your address with the free ADU checker, or confirm with the building department at (585) 723-2443.

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

No district in Town of Greece requires a special-use permit for an ADU - 8 districts prohibit ADUs, 4 allow them with occupancy restrictions. Site-plan review or a building permit may still apply.

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

Short-term rentals allowed with local rules for Town of Greece. 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 Greece

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 Greece, priced by size.

How we know this

Zoning code
ecode360.com/10840054
Districts confirmed
12 of 12 — every mapped district.
Last reviewed
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.

ADU information for Town of Greece is compiled from the municipal code (last reviewed 2026-08-07) 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) 723-2443 before relying on any answer. Source: the Offsite / Aldo zoning dataset.

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