Piscataway zoning check

Enter a single-family lot in one of Piscataway's residential zones, from RR-1 to R-7.5, and see, line by line, whether the project meets the lot, yard, height and coverage limits. The check is free.

Covers the Township of Piscataway's single-family zones RR-1, R-20, R-20A, R-17.5, R-15, R-15A, R-10, R-10A and R-7.5, Middlesex County. Checks a new house, an addition, an attached garage, a detached garage, a shed or a deck.

Numbers last checked October 27, 2026 against the Township's online code and pending Ordinances 2026-09, 2026-10 and 2026-14.

Zoning table for your drawings


ITEM	REQUIRED	EXISTING	PROPOSED	COMPLIES

ENC = existing nonconforming condition, not increased. * = relief required.

Prepared with a calculation aid. Not a zoning determination. Confirm every requirement with the municipal zoning officer.

What this does not check

Where the numbers come from

Terms of use

This is a calculation aid. It is not a zoning determination, a permit review, a survey, or legal, architectural or engineering advice, and it does not replace review by the municipal zoning officer or a licensed professional.
The numbers may be out of date, incomplete or wrong. Towns amend their zoning, and some towns here were entered from older schedules, as each town's page says. No one guarantees that any requirement shown is current or correct.
You are responsible for checking. Before you design, apply for a permit, buy property or build, confirm every requirement against the municipality's current code and with its zoning officer.
Not everything is checked. Each town's page lists what it leaves out. Other rules, such as easements, deed restrictions, environmental limits and historic review, can also affect a project.
No warranty. The site and its tables are provided as is, without warranties of any kind, express or implied.
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Agreement. By using this site, or by buying or unlocking the full table, you agree to these terms.

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The address lookup is the exception. If you press "Find my lot and zone", the address you typed goes to the State of New Jersey's public parcel service, and the lot's map position to the regional zoning map run by the North Jersey Transportation Planning Authority.
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