Building permits, zoning and septic rules in East Brunswick Township, New Jersey

At a glance

Building permit

Required; issued by the township construction official under the state code¹

Zoning

Set by the township, not Middlesex County²

Septic permit

Required from the township Division of Health before locating, building or altering a system⁵

Well permit

Required from the township Department of Health; fee of $100⁶

Sewer connection

Required where a sewer line runs along the street⁷

R-2 minimum lot

20,000 square feet for a residential lot; 22,000 on a corner⁸

Short-term rental

Township permit required before renting or advertising⁹

Who to call

Contact details are copied from each office’s official page and were checked against it on October 13, 2026.

Do you need a building permit in East Brunswick Township, NJ?

Yes. New Jersey's Uniform Construction Code requires a construction permit for new construction and for work on existing buildings, with an exception for ordinary maintenance such as routine repair¹⁰. The permit is issued locally: the East Brunswick Division of Construction Inspection administers and enforces the state regulations for new construction, alteration, occupancy and use inside the township¹¹.

Before a permit can issue, any required state, county and local approvals must be in place¹². A new building also needs a certificate of occupancy before anyone uses it¹³.

Who issues building permits in East Brunswick Township, and how do you reach them?

Building permits inside East Brunswick come from the township's Division of Construction Inspection at 4 Harts Lane, phone 732-390-6875¹¹. Middlesex County does not issue construction permits for private homes; the municipal construction official does¹. Applications go to the local Construction Code Enforcement Office¹⁴.

Zoning questions go to the Department of Planning & Engineering, which lists zoning code enforcement among its work, at 732-390-6870¹⁵.

Does East Brunswick Township have zoning, and what does it mean for lot size and setbacks?

Yes. Zoning in New Jersey is enacted by municipalities, and the county does not zone². New Jersey counties have no zoning grant of their own¹⁶.

Rules differ by district. In the R-2 Single Family Suburban Residence District, a residential lot needs 20,000 square feet, or 22,000 square feet on a corner⁸. R-2 setbacks are 40 feet in front and 40 feet in the rear, with 20 feet on one side or 40 feet across both sides, and 15 feet for accessory buildings on the side or rear¹⁷. In the RP Single-Family Rural Preservation District, conventional development is one dwelling per six acres, and lot-size averaging may not go below two acres per lot¹⁸.

We could not confirm the township's rules on tiny homes, accessory dwellings or minimum house size; ask Planning & Engineering¹⁵.

How do septic permits work in East Brunswick Township?

East Brunswick's code states that no one may locate, construct or alter an individual sewage disposal system until the Division of Health issues a permit³. A new system may not be used, and a dwelling relying on it may not be sold or occupied, until the Division of Health certifies it was built to the permit¹⁹.

Middlesex County's Environmental Health Division separately states that all septic work requires its approval, so confirm with both offices which signs off on your project⁴.

Where a sewer line runs along your street, the township code requires the building to connect to it⁷. Wells need a permit from the township Department of Health, with a $100 fee⁶.

Can you live in an RV or tiny home in East Brunswick Township?

We could not confirm that the township allows living in an RV or a tiny home on a lot; the township code pages we reviewed did not address tiny homes. Ask the Department of Planning & Engineering before buying¹⁵.

HUD manufactured homes are limited to use group R-5, single-family dwellings, under state rules²⁰. Short-term rentals need a township permit from Planning & Engineering before renting or advertising⁹.

Building a home in East Brunswick Township: the steps, in order

1. Confirm the zoning district and its lot, setback and use rules with Planning & Engineering¹⁵.
2. Get septic and well approvals from the Division of Health, or confirm the sewer connection requirement⁵.
3. File the construction permit application with the township's Construction Code Enforcement Office¹⁴.
4. Expect periodic inspections as work proceeds, with footing trenches inspected before footings are placed²¹.
5. Obtain a certificate of occupancy before using the building¹³.

What stays with Middlesex County, and what to check before you buy

Middlesex County's Planning Board reviews subdivision and site-plan applications that affect county roads or drainage, and that review does not replace municipal subdivision or zoning approvals²². For land outside the township, see the Middlesex County page.

A driveway onto a state highway needs a state access permit²³. An owner who builds a home must file an affidavit with the construction official before a certificate of occupancy issues²⁴. Middlesex County's effective property tax rate is 2.2%²⁵.

Watch-outs

• The township's own code pages we reviewed did not state a general building-permit trigger, so confirm scope with the Division of Construction Inspection¹¹.
• The township code assigns septic permits to its Division of Health, while the county health division also states it approves septic work; ask both who signs off³.
• Floodplain rules in the township's zoning chapter were not confirmed; ask Planning & Engineering about flood-hazard limits before buying¹⁵.

Sources

1. NJ Dept of Community Affairs — The NJ State Uniform Construction Code (2026 county census)
2. NJ Dept of Community Affairs — Uniform Construction Code (2026 county census)
3. Chapter 174 Sewage Disposal Systems, Individual (East Brunswick Township), quoted and re-checked
4. Middlesex County Environmental Health Division (middlesexcountynj.gov)
5. Chapter 174 Sewage Disposal Systems, Individual (East Brunswick Township), quoted and re-checked
6. Chapter 225 Well Drilling (East Brunswick Township), quoted and re-checked
7. Chapter 177 Sewer Connections (East Brunswick Township), quoted and re-checked
8. Article IV: Regulations for the R-2 Single Family Suburban Residence District (East Brunswick Township), quoted and re-checked
9. Chapter 182 Short-Term Rentals (East Brunswick Township), quoted and re-checked
10. The New Jersey State Uniform Construction Code, quoted and re-checked
11. East Brunswick Division of Construction Inspection (eastbrunswick.org)
12. New Jersey Uniform Construction Code, N.J.A.C. 5:23 (New Jersey statewide rule), quoted and re-checked
13. N.J.A.C. 5:23, Uniform Construction Code (New Jersey statewide rule), quoted and re-checked
14. Construction Permit Application Packet & Related Forms, quoted and re-checked
15. East Brunswick Department of Planning & Engineering (eastbrunswick.org)
16. P.L. 2013, c.106 — Municipal Land Use Law amendments (New Jersey statewide rule), quoted and re-checked
17. Article IV: Regulations for the R-2 Single Family Suburban Residence District (East Brunswick Township), quoted and re-checked
18. Article II-A: Regulations for the RP Single-Family Rural Preservation District (East Brunswick Township), quoted and re-checked
19. Chapter 174 Sewage Disposal Systems, Individual (East Brunswick Township), quoted and re-checked
20. Manufactured/Modular Buildings Program (New Jersey statewide rule), quoted and re-checked
21. New Jersey Department of Community Affairs, New Home Warranty—Consumer Information (New Jersey statewide rule), quoted and re-checked
22. Middlesex County Planning Board Resolution 2025-13 and Land Development Standards Chapter 400, quoted and re-checked
23. Major Access Permits (New Jersey statewide rule), quoted and re-checked
24. N.J.A.C. 5:23, Uniform Construction Code (New Jersey statewide rule), quoted and re-checked
25. Effective property tax rate: Bolthole Index county data

Written October 13, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.