Denville Township, New Jersey Building Permit Guide

In Denville Township, the Construction Department at 1 Saint Mary’s Place (973-625-8300, ext. 251) enforces the Uniform Construction Code for building, plumbing, electrical and fire work, and Construction Official Sal Poli is also the contact for zoning approval; DCA covers elevators. Zoning approval with a survey comes before construction ($100 for residential construction, $75 for fences, sheds and other accessory work), each subcode carries a $75 minimum fee, and inspection requests are accepted only in writing by email. To sell a house, the only township inspection is a smoke, CO and extinguisher check by Fire Prevention.

What requires a building permit in Denville?

Denville posts a list of the projects that most often need permits, and says it is not complete, so call the department before starting any work. The state’s ordinary maintenance rule (N.J.A.C. 5:23-2.7) still covers small repairs with no permit, and minor work under N.J.A.C. 5:23-2.17A is permitted but may begin after notice.

The department posts safety information for owners of decks more than 25 years old, and anyone digging must call New Jersey One Call (1-800-272-1000) first.

What Denville decides and what the state holds

The UCC sets the technical rules. Denville sets its construction fees in Chapter II of the Township Code (sections 2A-7 to 2A-10), its zoning in Chapter 600 (Land Use), its sewer capacity and water connection fees, and runs its own Health Department for septic plan review. Ordinance 15-26, adopted June 9, 2026, amended Chapter 600 to prohibit certain uses, and the township’s pending-ordinances page lists further amendments to the administrative and land use codes, so check it before a zoning application.

Denville building department: who handles permitting

The Construction Department has jurisdiction over building, plumbing, electrical and fire work, and the zoning pages name the same office and official for zoning approval. DCA’s roster as of September 2, 2026 lists Salvatore F. Poli as construction official, building subcode official and fire protection subcode official, with township officials in the electrical and plumbing posts and DCA as elevator subcode official.

Denville permit types

Permits use the state UCC jacket and technical sections; Denville’s handouts and fee sheets sit in its online Form and Document Center under Construction/Zoning.

Residential permits

• Septic systems: the Health Department reviews and approves the design, and the Construction Department issues the permit. Septic work is done by contractors licensed by the township, which keeps a list of them.
• Demolition: a building permit plus a plumbing permit to decommission the septic system or cap sewer and water, a tank removal permit if there is an oil tank, disconnect letters from JCP&L, New Jersey Natural Gas and the township water utility, an exterminator’s letter, a copy of the letter sent to every adjoining owner with the demolition date, asbestos and lead abatement where needed, any well sealed by a licensed well driller, and a recycling proposal. The department also suggests donating usable fixtures and building materials to the Habitat for Humanity ReStore before a house comes down.
• New houses: a new connection pays the township’s $4,400 sewer capacity fee and $1,800 water connection fee, plus meter and yoke charges and construction water at $75 a quarter.

Denville’s Health Department runs a septic program under authority delegated by NJDEP. Besides approving designs for new and repaired systems, it regulates alternative on-site wastewater systems, tells owners where existing systems are located, answers nuisance complaints and licenses the contractors who work on septic systems in the township. Its forms cover septic repair submissions, septic tank abandonment, installation procedures and the township’s standard certificate of compliance, and the office is in the Municipal Building, open weekdays 8:00 a.m. to 4:00 p.m.

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

Commercial permits

A new or transferred business must have its business license application submitted and approved by Zoning before it signs a lease or buys the property, so Zoning can confirm the use is allowed at that location. Interior or exterior renovations then need construction permits, food businesses check with the Health Department, and every new or replacement sign needs both zoning approval and a building permit. Businesses and multi-family buildings also receive fire safety inspections from Fire Prevention.

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

What comes before the construction permit

• Zoning approval. Required before construction for new construction and rebuilds, additions, decks, solar, pools, garages, cabanas and other accessory buildings, sheds, walls, fences, steps and porticos, signs and new businesses. Submit a survey showing where the improvement goes; the zoning office reviews height, size, shape and use.
• Boards. Variances and site plans go to the Planning Board or the Zoning Board of Adjustment through the Board Secretary (ext. 246).
• Health. Septic plans to the township Health Department before the construction permit.
• County. All subdivisions, and site plans on a county road or adding more than an acre of impervious cover, need Morris County Planning Board review (individual one- and two-family site plans are exempt); soil disturbance over 5,000 square feet needs Morris County Soil Conservation District certification (973-285-2953).

Denville splits land-use decisions between two boards. The Planning Board, made up of the Mayor and eight members the Mayor appoints, meets on the second Wednesday of the month at 7:30 p.m. and decides subdivisions, non-residential site plans and conditional uses; a conditional use that also needs a variance goes to the other board. The Zoning Board of Adjustment, seven regular members and two alternates appointed by the Council, meets on the first and third Wednesday at 7:00 p.m. and hears variances, including uses the zoning ordinance does not permit. Applications and both boards’ by-laws are posted with the township’s forms, and the board page also carries the master plan re-examination reports for 2025 and 2026 and the 2026 affordable housing and fair share plan. For everyday questions, the zoning office posts the ordinances it is asked about most: fences, commercial vehicles, boat storage and farm animals.

Denville permit costs and fees

Denville’s construction fees are set in Chapter II, sections 2A-7 to 2A-10 of the Township Code (published on eCode360); the township’s fee page gives the $75 minimum per subcode and points to fee sheets in its document center. The fees the township prints on its fee page:

The state surcharge is added to construction permits: $1.90 per $1,000 of value for alterations and $0.00371 per cubic foot for new buildings and additions (N.J.A.C. 5:23-4.19). For a new house on public water and sewer, the township’s own connection charges alone come to $6,200 before meters ($4,400 + $1,800).

Trade permits and who may pull them

Trade work is filed on the technical sections of the construction permit and inspected by Denville’s subcode officials; the Construction Official also holds the building and fire protection posts. New Jersey licenses electrical contractors, master plumbers and HVACR contractors and has no general contractor license; home improvement contractors register with the Division of Consumer Affairs, and homeowners working on their own homes are exempt from registration.

• Electrical: services, panels and generators need permits; electrical inspections have their own hours (see below).
• Plumbing and gas: water heaters, boilers, gas piping, gas grills and gas logs, and sewer and water connections; demolition needs a plumbing permit to cap services.
• Fire: stoves, gas logs, oil tanks and fire systems; the fire protection subcode is held by the Construction Official.
• Signs: every new or replacement sign needs a building permit as well as zoning approval, which costs $75.

How to apply for a Denville building permit

Review, corrections and what causes delay

Zoning approval must be in place before construction begins, and septic designs need Health Department approval before Construction can issue the permit, so start those reviews first. Once the application is complete with all prior approvals, N.J.A.C. 5:23-2.16 gives the construction official 20 business days to decide it.

Inspections and certificates in Denville

All inspection requests must be in writing. Email INSPECTIONS@DENVILLENJ.ORG with the property address and permit number; staff confirm the booking, and without a confirmation you are not on the schedule. Residents without email use the inspection request form from the Form Center. The approved plans must be on site for the inspector, and anyone phoning the office about an inspection, including the home sale line at ext. 257, needs the permit number at hand. The department lists ext. 507 as its inspections and permit voicemail line.

A certificate of occupancy or approval closes the permit after the final inspections.

Selling a house

Denville requires only one inspection for a house sale: the Fire Prevention smoke detector inspection, which also covers carbon monoxide detectors and a fire extinguisher in the kitchen. Call ext. 257 to schedule; the fee is $35 with more than 10 days’ notice, $70 with 4 to 10 days and $125 with less than 4 days, and the certificate is good for six months. The township also asks sellers to close out all open permits before the property transfers.

New Jersey building code in Denville

Denville applies the statewide Uniform Construction Code: the 2024 I-codes, 2024 National Standard Plumbing Code and 2023 NEC from August 17, 2026, with the 2021 codes and 2020 NEC permitted until February 17, 2027 for applications complete with all prior approvals. FEMA’s Community Status Book lists Denville Township (community 345292) as participating in the National Flood Insurance Program, with flood maps dated April 17, 1985, and in the Community Rating System at class 7, a 15% insurance discount; the township also posts an Army Corps of Engineers flood study.

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

Denville permit search and official resources

Denville’s permit database is online: search by business name, owner name, location or contractor. Permits issued before 2000 may not appear; for those, file an Open Public Records Act request through the Municipal Clerk’s office.

• Denville Construction Department
• Denville permit database
• Inspections and inspection hours
• Township fee schedule
• Zoning Department
• Planning Board and Board of Adjustment
• Selling your house
• Fire Prevention
• Health Department: septic systems
• Demolition requirements (PDF)
• Introduced and pending ordinances
• Morris County Planning Board land development review
• Morris County Soil Conservation District
• DCA local construction contacts roster
• FEMA Community Status Book, New Jersey

Denville building permit FAQs

Do I need a permit for a new roof in Denville?

Denville’s permit list names residential roofs when the sheathing is replaced and commercial roofs when more than 25% is replaced; call ext. 251 about other roofing work.

Does a fence need a building permit?

No, only a $75 zoning permit with a survey showing the fence location.

How do I schedule an inspection?

Email INSPECTIONS@DENVILLENJ.ORG with the address and permit number and wait for staff to confirm; every request must be in writing.

What inspection do I need to sell my house?

Only the Fire Prevention smoke detector inspection, covering smoke and CO detectors and a kitchen fire extinguisher; book more than 10 days ahead to pay $35.

Who approves a septic system?

Denville’s Health Department reviews and approves septic plans, and the Construction Department issues the permit.

Can I look up old permits?

Yes, in the online permit database; records from before 2000 may require an OPRA request to the Clerk.

What does a new house pay for water and sewer?

A $4,400 sewer capacity fee and a $1,800 water connection fee, plus meter, yoke and construction water charges.

Simplify Denville 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 Denville Township permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.