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

Section 21-8 of the Zoning Chapter sets a standalone bulk and density schedule for large industrial parcels: the development in the LI-1 and M-1 Industrial Zones of any permitted use or permitted accessory use on a parcel of land which is three acres or larger is subject to the following schedule of bulk and density requirements. Within that schedule, Section 21-803 sets a 129,000-square-foot minimum lot area (250 feet of width and depth), Section 21-804 sets minimum yards of 75 feet in front, 40 feet on each side and 50 feet in the rear for the principal building, and Section 21-805 then fixes maximum building coverage at 45 percent of the lot.

Section 21-806 pairs that coverage cap with a 15,000-square-foot minimum first-floor area, so a qualifying parcel cannot be covered with several small buildings instead of one large one. This schedule is separate from the general residential and commercial coverage limits carried in the Township's Schedule of General Requirements at Section 21-501.1, which is filed as an attachment rather than printed inline; the 45 percent figure applies specifically to three-acre-plus LI-1 and M-1 development, not to smaller industrial lots or other zones.