What is the minimum lot size in Montgomery, NJ?

In Montgomery's single-family zones: MR requires 435,600 sq ft; R-5 requires 217,800 sq ft; R-2 requires 87,120 sq ft; R-1 requires 43,560 sq ft; R requires 21,780 sq ft; PPE requires 435,600 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 Montgomery, 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 Montgomery.

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

Single-Family Zones

Montgomery zoning, zone by zone.

Zone	Min lot (sq ft)	Min width	Front	Side (each / total)	Rear	Bldg coverage	Height
MR MR Mountain Residential	435,600	350 ft	100 ft	100 ft	100 ft	7%	35 ft
R-5 R-5 Single Family Residential	217,800	300 ft	75 ft	75 ft	100 ft	8%	35 ft
R-2 R-2 Single Family Residential	87,120	200 ft	75 ft	40 ft	75 ft	10%	35 ft
R-1 R-1 Single Family Residential	43,560	150 ft	50 ft	20 ft	50 ft	10%	35 ft
R R Single Family Residential	21,780	100 ft	50 ft	20 ft	35 ft	15%	35 ft
PPE PPE Public Parks and Education District (single-family detached)	435,600	350 ft	100 ft	100 ft	100 ft	7%	35 ft

Source: Chapter 16 Land Development, Article IV Zoning District Regulations - Area and Yard Requirements table. 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 Montgomery 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 MontgomeryFree, 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 Montgomery. Numbers updated September 2026.

About Michael · (908) 399-0780

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What can you build in Montgomery?

Montgomery zoning, zone by zone.

Check any Montgomery address.

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