Hamilton, NJ Building Setbacks & Zoning: Structure Height Limits (2026)

Section 550-74 of the Land Development chapter governs the R-15, R-10, R-7 and R-5 Single-Family Residential Districts, which together cover most of the township's detached-home neighborhoods. 5 stories, and accessory structures such as detached garages or sheds are held to 15 feet. The code defines "building height" in § 550-19 as the vertical distance from the mean elevation of finished grade along the street-facing side of the building (or the street line, whichever is closer) up to the mean highest point of the structure; on a corner lot the measurement runs from the street with the greater slope.

Rooftop mechanical equipment is excluded from the height count only if it stands under 10 feet tall, covers less than 30% of the roof, and is screened or blended into the facade. Before any structure over grade rises, the Construction Official must issue a construction permit under § 550-282, reviewing plans that show the exact height and location of the building; a permit must be granted or denied within 20 business days of a complete application. No certificate of occupancy can issue until the Construction Official confirms the completed structure conforms to this height limit and every other chapter requirement, and an existing certificate becomes void the moment a violation is found. A homeowner who wants to exceed 35 feet needs a variance from the Zoning Board of Adjustment rather than a building permit alone.