Building Setbacks & Zoning in Smithtown, NY (2026)
2 verified building setbacks & zoning rules for Smithtown, New York, sourced directly from the municipal code and official government pages.
Verified from official government sources
Setback Rules
Smithtown's zoning code does not spell out district-by-district yard minimums in the base text (those sit in the Table of Dimensional Regulations attachment), but § 322-15.D sets a specific rule: a side-entry attached garage must push its side yard on the garage side out to 35 feet.
Smithtown Garage Entrance Side-Yard Setback
Some RestrictionsSmithtown Code § 322-15.D
For garage entrances facing into a side yard area, when attached or part of the main building in any residential zone, the minimum side yard on that side of the building shall be increased to 35 feet, the other minimum side yard shall be observed and the total for both side yards shall be increased pursuant to the above.
Lot Coverage Limits
Smithtown's zoning code does not print a general lot-coverage percentage in the base text (that lives in the Table of Dimensional Regulations attachment), but § 322-14.B sets a specific 10% lot-coverage cap on any structure built above its zone's height limit, such as a tower, spire, or flagpole exempted under Subsection A.
Smithtown Over-Height Structure Coverage Cap
Some RestrictionsSmithtown Code § 322-14.B(1)
No structure erected pursuant to Subsection A above to a height in excess of the height limit for the zone in which it is situated shall: (1) Have a lot coverage in excess of 10% of the lot area.
Looking for Suffolk County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Smithtown city rules.
Building Setbacks & Zoning in Suffolk County →