Hillsborough Township, New Jersey Building Permit Guide

In Hillsborough Township, the Building Department at 379 South Branch Road (908-369-5882) is the UCC enforcing agency for residential, commercial and industrial work, with John Fiedler as Construction Official; the state Department of Community Affairs handles elevators. For most house projects, zoning and engineering approval must come before the department accepts the application, inspections are requested in writing, and a home sale needs a smoke and carbon monoxide certificate from the Hillsborough Fire District rather than a certificate of occupancy. Revised FEMA flood maps apply from November 13, 2026.

What requires a building permit in Hillsborough?

The Building Department administers the UCC for all construction in the township, from a backyard pool to a new warehouse. Under state rules, ordinary maintenance (N.J.A.C. 5:23-2.7) needs no permit or notice, and minor work (5:23-2.17A) needs a permit but may start once the application is in; the department gives HVAC and water heater replacements as examples of minor work. Anything else waits for the issued permit, and the department asks people to check with it before starting any work.

A heating or hot water emergency is the exception to waiting: if you have no heat or hot water, the replacement can go ahead once the department has been told by phone, and the application must reach the office within 72 hours.

What the township decides and what the state holds

The construction code itself is the state’s. Hillsborough decides its construction fee schedule (in the township code), the zoning permit required by section 188-17 of its Land Use and Development chapter, its Flood Damage Prevention Ordinance (Chapter 172), the smoke alarm certificate rule in section 166-16 that the Fire District enforces, its green building policy, and the Master Plan now being reexamined.

Hillsborough building department: who handles permitting

The Building Department reviews plans, issues permits, inspects, issues certificates of approval and occupancy, and reports to DCA monthly; its staff include a technical assistant who specializes in commercial files. DCA’s roster as of September 2, 2026 lists Hillsborough’s own construction, building, electrical, fire protection and plumbing officials and names the Department of Community Affairs as elevator subcode official, at 379 South Branch Road, phone 908-369-5882, fax 908-369-3954. The township’s main number, 908-369-4313, reaches staff by extension.

Hillsborough permit types

Every application is one construction permit folder plus the technical sections the job needs, in three copies each, with two copies of every construction document (plans, design professional letters, specifications, riser and line diagrams, load calculations). A technical section completed by a licensed electrician, plumber or HVACR contractor must carry a raised seal on every page. The department posts video tutorials for the folder and each technical section, a guide to how many technical cards a job needs, and forms such as the chimney verification and liner worksheets, a combustion air calculation sheet, the certificate application and checklist, and the car charger requirements.

Residential permits

• Who may do the work. In an owner-occupied single-family home the owner may usually do the work, though the department lists air conditioning installation or replacement as work a homeowner cannot do; condominium owners must hire licensed contractors.
• Filing online. Homeowners doing their own work may file on the SDL portal, and the department accepts online applications for certain other work too.
• Gas loads. Before buying a generator or tankless water heater, ask the gas utility to check the service and meter with its residential gas load form, since an undersized service may have to be replaced at the owner’s cost.
• Paying the contractor. State consumer rules printed on the permit notice say final inspections come before the final payment to the contractor.

Building or remodeling a home here? Alliance handles home building permits, so the crew isn't waiting on the counter.

Commercial permits

A new tenant follows the department’s July 21, 2026 guide. A certificate of continued occupancy covers a space taken over in the same use group with no alterations; a change of use covers a different use group; a tenant fit-out covers alterations and needs a barrier-free disproportionate cost analysis. The file needs zoning approval, Health Department approval for food, child care, kennel, tanning and body art uses, Clerk approval for massage businesses, a letter from the property owner, and a prior tenant form signed by the Bureau of Fire Safety and the Municipal Utilities Authority, which also issues sewer use permits. Businesses with testable backflow devices must have them tested every year and file the results. The township does not require a certificate of occupancy on the resale of commercial property.

For tenant improvements and new commercial builds, Alliance handles commercial permit filing through issuance. More on this: commercial building permits explained.

What comes before the construction permit

• Zoning permit. Section 188-17 makes it a condition of starting any use or structure. A residential file needs one survey with the work drawn on it, the $25 fee, the $10 flood zone certification fee (or a certification under seven years old), the impervious coverage sheet, building plans and any HOA approval; the Zoning Officer has 10 business days to act and replies by mail or email.
• Engineering. For most residential jobs Engineering approval is also needed before the Building Department will take the file, and Planning & Zoning cannot hold the building jacket while you wait.
• Boards. Variances and site plans go to the Board of Adjustment or Planning Board; the Historic Preservation Commission and Sign Review Committee also review projects. The township warns that it never asks for escrow payments by wire transfer.
• Soil conservation. Projects disturbing 5,000 square feet or more go to the Somerset-Union Soil Conservation District for certification (308 Milltown Road, Bridgewater; 908-526-2701).
• Septic and wells. The township’s Department of Health & Environmental Services handles septic and well matters, and the Private Well Testing Act applies when a home with a private well is sold or leased.

Hillsborough permit costs and fees

Construction fees follow the township code, published on eCode360 rather than on the department’s page. The department emails the cost when the permit is ready (no cost shown means it is not ready), and payment is taken in the office by exact cash, check to Hillsborough Township or card, by card over the phone, or through an online payment link the office sends on request. The local fees the township publishes are below.

Any outstanding penalty must be paid before the department issues a certificate.

Trade permits and who may pull them

Electrical, plumbing and mechanical, and fire protection work is filed on its technical section and inspected by Hillsborough’s subcode officials; one official covers plumbing and mechanical. The state licenses plumbers, electricians and HVACR contractors, and the department reminds owners that every other contractor working on a home needs a current state home improvement contractor registration; new-home builders register with DCA, and there is no state general contractor license. Owners working on their own single-family home are exempt from registration, within the township’s limits on what a homeowner may do.

• Electrical inspections run weekdays 8:00 a.m. to 3:00 p.m. and Saturdays 8:00 a.m. to 2:00 p.m.
• Plumbing and mechanical include furnace, water heater and central air replacements, gas lines for generators, and annual testing of commercial backflow devices.
• Fire protection inspections run weekdays 8:00 a.m. to 3:00 p.m.
• Elevators are DCA’s subcode in Hillsborough.

How to apply for a Hillsborough building permit

Review, corrections and what causes delay

The department will not accept an incomplete application, so a file missing copies, seals or prior approvals is turned away at the counter. Under N.J.A.C. 5:23-2.16 the construction official has 20 business days to approve or deny a complete application. Changes after issue need the matching technical section and documents again, and putting an email address on the application brings automatic status updates.

Inspections and certificates in Hillsborough

Inspection requests must be written: book them on the SDL portal, or complete the Construction Permit Inspection Request form and email it to the address on the form or drop it off, and you will get an email confirming the date. Building, fire and plumbing inspections run Monday to Friday from 8:00 a.m. to 3:00 p.m., and electrical inspections also on Saturdays from 8:00 a.m. to 2:00 p.m. A permit with several stages comes with an inspection checklist; a minor work permit needs only a final. For commercial work, every electrical, plumbing and fire rough must pass before the building frame inspection, the permit and plans must be on site at each visit, and the inspection stickers should be kept as proof.

A permit stays open until every final inspection, and any prior approval, has passed. The department mails letters about open permits, and if a previous owner left one open, the current owner must close it, whoever did the work.

Selling or leasing a home

The Building Department does not issue a certificate of occupancy for a residential resale; it asks sellers to contact it before selling so open permits can be closed. The Hillsborough Fire District’s Bureau of Fire Safety issues the Certificate of Smoke Alarm and Carbon Monoxide Alarm Compliance required under section 166-16 and N.J.A.C. 5:70-2.3 before a one- or two-family home is sold or leased. Payment must be made before the application is processed: $50 more than 10 business days before the change of occupant, $90 at four to 10 days and $160 under four, payable to the Hillsborough Township Board of Fire Commissioners. No specific inspection times are given. The Fire District says battery alarms must be 10-year sealed units, all alarms must be under 10 years old, and fire extinguishers are no longer required for the certificate. Selling or leasing without the certificate can bring a penalty of up to $5,000.

New Jersey building code in Hillsborough

The UCC in Hillsborough is enforced by township-employed officials. Since August 17, 2026 the 2024 I-codes, the 2024 National Standard Plumbing Code and the 2023 NEC apply, with the 2021 codes and 2020 NEC still allowed until February 17, 2027 for a complete application whose prior approvals are in hand. FEMA’s Community Status Book lists Hillsborough Township (community 340436) as participating in the National Flood Insurance Program, and new flood maps take effect on November 13, 2026; the zoning permit’s flood zone certification is how the township checks a lot against the maps and its Chapter 172 flood ordinance.

New Jersey has one Uniform Construction Code for every municipality; the town supplies the enforcing agency, the fee ordinance and the zoning approvals. New Jersey rules

Hillsborough permit search and official resources

The township’s SDL portal shows permit status, plan review and inspection information and searchable permit and property records once you create an account and pick Hillsborough as your town; Open Public Records Act requests are filed through the same portal.

• Building Department: forms, tutorials and FAQs
• Permits
• Property owner information: replacements and contractors
• Building Department reminders (September 2026)
• Commercial permit instructions
• CCO, change of use and tenant fit-out guide
• No certificate of occupancy on commercial resale (memo)
• Planning & Zoning
• Zoning permit application
• Health & Environmental Services
• Hillsborough Fire District: smoke alarm certification
• Smoke and CO alarm certificate application
• Soil conservation district directory (NJ Department of Agriculture)
• DCA local construction contacts roster
• FEMA Community Status Book, New Jersey

Hillsborough building permit FAQs

Do I need a permit to replace my furnace or water heater?

Yes. In an emergency you may replace it after notifying the department by phone, as long as the application arrives within 72 hours.

Can I do the work myself?

In an owner-occupied single-family home, usually yes, though not air conditioning installation; condominium owners must hire licensed contractors.

How do I schedule an inspection?

In writing: through the SDL portal or by emailing or dropping off the inspection request form. Electrical inspections are also offered on Saturdays.

Is a resale certificate of occupancy needed when I sell in Hillsborough?

No. You need the Fire District’s smoke and carbon monoxide certificate, $50 if requested more than 10 business days ahead, and any open permits closed.

How much is a zoning permit?

$25 for a residential zoning permit, plus $10 for a flood zone certification unless you have one under seven years old.

Are Hillsborough’s flood maps changing?

Yes. FEMA’s new flood maps for the township become effective November 13, 2026.

Simplify Hillsborough Township permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in New Jersey. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Hillsborough Township permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.