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

Chapter 37 of the Edison Township Code sets lot-coverage maximums in the bulk schedule for each zoning district — typically a maximum building coverage (the footprint of principal and accessory buildings as a percentage of lot area) and, in some zones, a maximum impervious coverage (buildings plus driveways and patios). Edison's accessory-structure rule (§37-48 series) limits the aggregate ground coverage of accessory structures to 10% of the total lot area or 35% of the rear-yard area, whichever is less, in residential zones. New construction that increases impervious surface area beyond 0.25 acre (10,890 sq ft) is also subject to NJ DEP Stormwater Management rules at N.J.A.C. 7:8 and requires stormwater management measures (recharge, quality, quantity controls); smaller residential projects may still trigger Edison's local stormwater review through the Planning & Engineering Division. Lot-coverage compliance is checked at the time of building-permit application via plot plan and again at field inspection by the Construction Department.