Town of Clarkson, NY: zoning for new construction

Agricultural Residential - A lot fronting a major road owes a 75 ft front setback. A two-family dwelling takes the same dimensions as a single-family, so a second unit needs no extra land, but it is a specially permitted use rather than a right.

• Agricultural operations need 5 acres and 250 ft of width, with a 100 ft front yard, 35 ft sides and a 60 ft rear.
• The height cap does not apply to barns, silos, water towers or tanks, windmills or other farm buildings on active farmland.
• Keeping farm animals needs 5 acres, keeping chickens 3 acres and keeping bees 2 acres, each with 30 ft side and rear setbacks.
• The accessory dwelling unit and the short-term rental are also specially permitted uses.
• Accessory structures take 15 ft side and rear yards and a 20 ft height cap.

Residential Suburban — 20,000 sq ft - A two-family dwelling takes the same 20,000 sq ft as a single-family, and a detached accessory dwelling unit is available on top under § 140-23.4, so a minimum lot can reach three units. Both the two-family and the accessory unit need their own special permit.

• A lot fronting a major road owes a 75 ft front setback.
• Any structure other than a dwelling or attached garage owes a 10 ft rear setback, and accessory structures take 10 ft side yards and a 20 ft height cap.
• A public park or playground, a religious or educational institution, and an animal hospital or grooming shop each need a full acre; a kennel needs an acre with 30 ft side and rear yards.
• Agricultural operations need 5 acres on 200 ft of width, and a golf course needs 50 acres.
• Keeping chickens needs 3 acres and keeping bees 2 acres, each with 30 ft side and rear yards.

Residential Suburban — 10,000 sq ft - A two-family dwelling takes the same 10,000 sq ft and 75 ft as a single-family, but only as new construction: converting an existing house into two units is prohibited at any lot size.

• This is the only district in the town reaching multifamily, in two tiers: up to a 4-unit dwelling takes 20,000 sq ft on 100 ft of width, and over four units a full acre on the same 100 ft.
• Both tiers are specially permitted, governed additionally by § 140-23.17, and both raise the height cap to 40 ft against the 35 ft for one- and two-family forms.
• Every nonresidential use takes 20,000 sq ft on 100 ft of width; a short-term rental is the exception on setbacks, taking a 25 ft front yard rather than 40 ft, on 75 ft of width.
• A lot fronting a major road owes a 75 ft front setback.
• Any structure other than a dwelling or attached garage owes a 10 ft rear setback, and accessory structures take 10 ft side yards and a 20 ft height cap.