Hamilton, NJ Building Setbacks & Zoning: Lot Coverage Limits (2026)

Section 550-74E's "maximum requirements" row sets building coverage at 20% in both R-15 and R-10, climbing to 25% in R-7 and 30% in R-5, the Township's smallest-lot single-family zone. Those percentages measure the footprint of buildings against total lot area, not overall impervious surface. In the more rural RRC Development Options and R-25 Districts, § 550-73B(7) sets a lower building-coverage cap of 12% for RRC and 15% for R-25, reflecting their larger minimum lot sizes of 40,000 and 25,000 square feet. The RRC/R-25 table adds a second, separate impervious-surface ceiling pegged to how much unconstrained land, meaning land outside wetlands, floodplains and other environmentally sensitive areas, a lot actually has: parcels under one unconstrained acre may cover up to 25% of the lot in impervious surface, that maximum steps down to 20% for one to two acres, 15% for two to five acres, 12% for five to ten acres and 10% for parcels with more than ten unconstrained acres.

In the Township's Multiple-Family A/T District, § 550-75E(8) sets a flat "Maximum lot coverage shall be 20%," a separate standard from the single-family tables and applied on top of that district's own front, side and rear yard rules.