Smithtown, NY Building Setbacks & Zoning: Lot Coverage Limits (2026)

A exempts certain features, church spires, cupolas, domes, belfries, clock towers, transmission line towers, flagpoles, chimney flues, public water supply tanks, and firesafety structures required by the New York State Fire Safety Code, from the zone's ordinary height limit. " The same over-height structure also cannot be used for residence or tenancy purposes, and cannot carry any sign, nameplate, or advertising device. Subsection C carves out a further exception for public or semipublic buildings, which may be allowed up to 50 feet in height notwithstanding §§ 322-8C, 322-9C, and 322-10C, provided the front, side and rear yards grow by one additional foot for every foot the building exceeds the district's stipulated height.

This 10% figure is the only lot-coverage percentage that appears in the zoning text itself; the general building-coverage maximum for an ordinary house or commercial building in each residence, business or industrial district is set district-by-district in the Table of Dimensional Regulations, which eCode360 publishes as a separate attachment to Chapter 322 rather than as running text.