What is the minimum lot size in Hillsborough, NJ?

In Hillsborough's single-family zones: CWTF option requires 20,000 sq ft; RC requires 5,000 sq ft; ARPDG requires 4,500 sq ft. Undersized existing lots may still be buildable under the ordinance, so check your specific lot.

How big a house can I build in Hillsborough, NJ?

It depends on the zone, lot size, setbacks, building coverage, height and any floor area limit. Enter an address in our free lot check to get a rough maximum home size for that lot in Hillsborough.

Hillsborough, NJ Zoning: Minimum Lot Sizes, Setbacks & What You Can Build

Single-Family Zones

Hillsborough zoning, zone by zone.

Zone	Min lot (sq ft)	Min width	Front	Side (each / total)	Rear	Bldg coverage	Height
CWTF option Single-family dwellings served by community wastewater treatment facility (§188-98 residential districts)	20,000	120 ft	35 ft	15 ft	50 ft	25%	35 ft
RC RC Retirement Community District (single-family detached)	5,000	50 ft	20 ft	5 ft / 10 ft	20 ft	45%	35 ft / 2.5 st
ARPDG ARPDG Age Restricted Planned Development Gateway (single-family detached)	4,500	45 ft	20 ft	5 ft / 10 ft	15 ft	50%	35 ft / 2.5 st

Source: Chapter 188 Land Use and Development, Article V Districts and Standards (plus 'Schedule for Residential Zones' attachment). Read 2026-09-28. Only zones we could confirm from the ordinance are shown. Rules change and have exceptions (corner lots, undersized lots, steep slopes, overlays), so confirm with the town zoning officer before you buy or design.

Check A Lot

Check any Hillsborough address.

Enter an address and we will show the lot size, its zone, roughly how big a new home could be, and how likely a builder is to want it.

Check a lot in HillsboroughFree, instant, from the state parcel map and this ordinance.Get our full read on a parcelZoning, density, subdivision, what it will sell for and how fast.Builder deal sheetMonthly: teardown and land opportunities in the towns you build in.

Written and reviewed by

Michael Bulwin

Licensed REALTOR-Associate, Builders Resource Center at Corcoran Sawyer Smith. Advises builders and owners in Hillsborough. Numbers updated September 2026.

About Michael · (908) 399-0780

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Hillsborough market reportEvery home sold, median prices and the agent who knows the town.What can you build on your lot?Enter an address: zoning, lot size and roughly how big a new home could be.

What can you build in Hillsborough?

Hillsborough zoning, zone by zone.

Check any Hillsborough address.

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