Town of Penfield, NY: zoning for new construction

RA-2 Rural Agricultural - The district sets no maximum lot coverage of any kind, so the buildable envelope comes from the lot minimum, the setbacks and the height alone. A deck or patio may sit 25 ft from the rear line rather than 30 ft.

• A covered or enclosed porch does not qualify for the shallower rear setback.
• Any other structure attached to or abutting the principal building must meet the full district setbacks.
• Multi-unit development is not a route on a single-family lot here. MR and TH are separate districts reached by rezoning.

CR-2 Conservation Residential - Decks and patios may sit 25 ft from the rear lot line rather than 30 ft. The district sets no maximum lot coverage of any kind, so the buildable envelope is controlled by the lot minimum, the setbacks and the height alone.

• A covered or enclosed porch does not get the shallower rear setback and must meet the full 30 ft.
• Any other structure attached to or abutting the principal building has to meet the full district setbacks.
• Multi-unit development is not a route on a lot here. MR and TH are separate districts reached by rezoning.

RR-1 Rural Residential - An uncovered deck or patio may sit 25 ft from the rear lot line rather than the 30 ft the house must hold. The district publishes no maximum lot coverage, so the envelope is set by the lot minimum, the setbacks and the height alone.

• A covered or enclosed porch does not qualify for the shallower rear setback.
• Every other structure attached to or abutting the principal building must meet the full district setbacks.
• Multi-unit development is not a route on a single-family lot here. MR and TH are separate districts reached by rezoning.

R-1-20 Residential - A deck or patio may sit 25 ft from the rear lot line rather than the 30 ft the house must hold. The district sets no maximum lot coverage, so the buildable envelope comes from the lot minimum, the setbacks and the height alone.

• A covered or enclosed porch does not get the shallower rear setback.
• Every other structure attached to or abutting the principal building must meet the full district setbacks.
• Multi-unit development is not a route on a single-family lot here. MR and TH are separate districts reached by rezoning.

R-1-15 Residential - No maximum lot coverage is set in this district, so the buildable envelope is governed by the lot minimum, the setbacks and the height alone. A deck or patio may sit 25 ft from the rear line rather than 30 ft.

• A covered or enclosed porch does not qualify for the shallower 25 ft rear setback.
• Any other structure attached to or abutting the principal building must meet the full district setbacks.
• Multi-unit development is not a route on a single-family lot here; the MR and TH districts are separate districts reached by rezoning.

R-1-12 Residential - Decks and patios may sit 25 ft from the rear line rather than the 30 ft required of the house, though a covered or enclosed porch does not qualify. The district states no maximum lot coverage, so the lot minimum, the setbacks and the height alone shape the envelope.

• Any other structure attached to or abutting the principal building has to meet the full district setbacks.
• Multi-unit housing is not a route on a single-family lot here. The MR and TH districts are separate districts reached by rezoning.

MR Multiple Residence - This district is reached by rezoning, and the area proposed must be served by sanitary sewers, storm sewers and public water. The 80 ft setbacks apply to the exterior property lines of the development rather than to individual lots.

• Lot size is set per unit rather than as a flat minimum: 3,500 sq ft of lot area for each apartment living unit under § 250-5.2D(1).
• Inside the development, no structure may stand closer than 50 ft to a public road right-of-way.
• A separation of 30 ft is required between any two structures.
• The 25% coverage cap is measured against the gross acreage of the development, not against a single lot.
• Height is two stories or 35 ft, whichever is less, so the story count binds first on a tall design.
• Apartment houses, multiple dwellings, two-family structures and proprietary health care facilities are permitted uses.

TH Townhouse Dwelling - Density runs on usable land: one living unit per 5,000 sq ft of usable land area, and unusable land does not count. The 80 ft setbacks are project perimeter figures rather than per-lot yards, so no structure may stand closer than 80 ft to any exterior property line.

• No more than eight individual townhouse units may sit in any one building or dwelling group.
• The district is reached by rezoning, and an area proposed for rezoning must be serviced by sanitary sewers, storm sewers and public water (§ 250-5.2A and § 250-5.3A).
• The 25% coverage cap applies to the gross acreage of the development, not to an individual lot.
• Height is two stories or 35 ft, whichever is less, so the story count can bind first on a tall design.
• Within the development, no structure may stand closer than 50 ft to a public road right-of-way or 30 ft to another structure.
• No internal front or rear setback may be less than 30 ft, and the 18 ft width describes an individual townhouse lot rather than the development parcel.