What is the minimum lot size in Denville, NJ?

In Denville's single-family zones: C requires 81,000 sq ft; R-C requires 40,250 sq ft; R-1 requires 40,250 sq ft; R-1A requires 208,000 sq ft; R-1B requires 81,000 sq ft; R-2 requires 15,000 sq ft; R-2A requires 11,200 sq ft; R-3 requires 7,500 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 Denville, 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 Denville.

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

Single-Family Zones

Denville zoning, zone by zone.

Zone	Min lot (sq ft)	Min width	Front	Side (each / total)	Rear	Height
C C Conservation District (§600-204)	81,000		100 ft	50 ft	100 ft	35 ft / 2.5 st
R-C R-C Residential Conservation (§600-205)	40,250		50 ft	30 ft	50 ft	35 ft
R-1 R-1 Residence District (§600-206)	40,250	135 ft	50 ft	30 ft	50 ft	35 ft / 2.5 st
R-1A R-1A Zone (§600-207)	208,000	400 ft	100 ft	50 ft	100 ft	35 ft / 2.5 st
R-1B R-1B Zone (§600-208)	81,000	225 ft	100 ft	50 ft	100 ft	35 ft / 2.5 st
R-2 R-2 Residence District (§600-209)	15,000	100 ft	35 ft	17 ft	50 ft	35 ft / 2.5 st
R-2A R-2A Zone (§600-210)	11,200	80 ft	30 ft	15 ft	40 ft	35 ft / 2.5 st
R-3 R-3 Zone (§600-211)	7,500	60 ft	25 ft	8 ft	35 ft	35 ft / 2.5 st
R-4 R-4 Zone (§600-212) single-family	5,000	50 ft	25 ft	5 ft	35 ft	35 ft / 2.5 st

Source: Chapter 600 Land Use, Part 4 Zoning, Article XXV Zone Regulations - Residence Districts, Zoning Map dated December 17, 2015 (§600-144). 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.

What Builders Build Here

What the market pays for new homes in Denville.

Zoning tells you what you are allowed to build. These numbers tell you what sells.

0teardowns since 2019older homes and lots bought by builders

n/amedian builder paidfor the old house and lot

2,121median new home, sq ftnew homes sold, last 2 years

$850Kmedian new home price46 sold, last 2 years

Check A Lot

Check any Denville 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 DenvilleFree, 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

Michelle C Nieves

REALTOR-Associate, New Development Advisor, Builders Resource Center at Corcoran Sawyer Smith. Advises builders and owners in Denville. Numbers updated September 2026.

About Michelle · (646) 251-8176

Keep Exploring

More on Denville.

Selling a home in DenvilleWhat homes sold for, what a builder might pay, and a free price estimate.Moving to DenvilleWhat your budget buys, how old the homes are, and what is for sale now.

Denville market reportEvery home sold, median prices and the agent who knows the town.New construction in DenvilleRecent new-home sales, sizes and price per square foot.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 Denville?

Denville zoning, zone by zone.

What the market pays for new homes in Denville.

Check any Denville address.

More on Denville.