Passaic County, New Jersey does not run one countywide building-permit or zoning office: the applicable municipal enforcing agency administers the state construction code, and each municipality controls zoning12. A new home using septic needs health-board certification before a building permit can issue, while qualifying subdivisions also go to the Passaic County Planning Board34.
At a glance
- Building permit
- Required for work covered by the NJ Uniform Construction Code; administered by the applicable local enforcing agency51
- Zoning
- Set by the municipality; rules vary across Passaic County62
- Septic permit
- Health-board certification is required before a building permit for a property using septic3
- Septic-friendly soils
- Only 11.4% of soils are rated not severely limited for a conventional drain field7
- Owner-builder exemption
- A qualifying owner may prepare plans for a detached private home, but permits and inspections still apply8
- Minimum lot size, setbacks, height
- Set district-by-district in your municipality's zoning ordinance; no statewide number91011
- Manufactured home
- Allowed as an R-5 single-family use under federal HUD standards, subject to local zoning12
Who to call
Building permits
West Milford Township Building Department
Uniform Construction Code building permits and inspections for West Milford Township, Passaic County's largest and most rural municipality
1480 Union Valley Road, West Milford, NJ 07480
Planning & zoning
West Milford Township Zoning Office
Zoning and code enforcement for West Milford Township, including the Zoning Board of Adjustment and Planning Board support
1480 Union Valley Road, West Milford, NJ 07480
Health department
Passaic County Health Department, Environmental Health (West Milford office)
On-site sewage (septic/ISDS) permits and environmental health services for West Milford Township, acting as the township's local health authority under statewide NJDEP standards
13 Edgar Drive, West Milford, NJ 07480
Contact details are copied from each office’s official page and were checked against it on October 10, 2026.
Off-grid gear
Going off-grid in Passaic County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Passaic County, New Jersey?
Yes, for work covered by New Jersey's Uniform Construction Code. Construction, enlargement, repair, renovation, alteration, reconstruction, demolition, regulated equipment work and changes of use require an application and the required permit, while defined ordinary maintenance is exempt513. Passaic County construction is governed by the statewide UCC and its technical subcodes, administered through local enforcing agencies14. A qualifying owner who personally prepares plans for a detached single-family private residence may submit an affidavit for a sealed-plan waiver, but that exception does not waive the construction permit or inspections8. New construction or substantial improvement in a flood-hazard V zone still needs structural documents developed or reviewed by a registered architect or licensed engineer8.
Who issues building permits in Passaic County, and how do you reach them?
The applicable local enforcing agency, not one general Passaic County construction office, administers a UCC building permit1. In West Milford Township, contact the West Milford Township Building Department for building permits and inspections15. Required inspections are periodic and include footing trenches, rough plumbing and electrical wiring, and framing before the work is concealed; the construction official issues a Certificate of Occupancy after final inspections pass1617. Municipal plan-review fees range from 5% to 25% of the construction-permit fee18. For an owner-occupied one- or two-family addition or alteration, zoning approval must precede plan review; a permit application is abandoned after six months unless it is diligently pursued, a permit issues, or an extension is granted19.
Does Passaic County have zoning?
Passaic County states that land-use power belongs to municipal governments, so zoning categories, housing types, density and dimensional standards vary by city, borough and township2. West Milford Township has local zoning, and its zoning-permit application requires a property survey and online submission20. Contact the West Milford Township Zoning Office for a West Milford parcel21. Minimum lot size, setbacks, lot coverage, building height and minimum dwelling size depend on the applicable municipal ordinance and zoning district, not one countywide schedule910221123. All subdivisions must also be submitted to the Passaic County Planning Board, although certain minor or municipal-exempt subdivisions that do not affect county roads or drainage are deemed reviewed upon receipt of a sketch plat4.
How do septic permits work in Passaic County?
A new Passaic County home using septic needs certification from the board of health with jurisdiction before a building permit can issue or construction can begin; local ordinances may impose standards above the state minimum3. Before a septic tank, field, seepage pit or other sewerage facility is covered, an authorized health-board representative must inspect it and give permission to cover24. In West Milford, start with the Passaic County Health Department's Environmental Health office25. We could not confirm one septic contact that handles every municipality, so buyers elsewhere should ask their municipal health office which board has jurisdiction. Only 11.4% of Passaic County soils are rated without severe limitations for a conventional drain field, making early site evaluation especially important7.
Can you live in an RV or tiny home on your land in Passaic County?
We could not confirm a countywide rule allowing long-term RV living or tiny-home occupancy in Passaic County. Because land uses and development rules vary by municipality, ask the zoning official for the parcel's municipality about RV occupancy, temporary camping, tiny homes and minimum dwelling size before buying2. West Milford has its own zoning office and requires zoning applications online with a property survey2021. A HUD manufactured home has a clearer state classification: New Jersey limits it to use group R-5 as a single-family dwelling, requires federal construction standards, and uses HUD-approved third-party installation inspections12. Municipal zoning still determines where that residential use may be placed2.
Building a home in Passaic County: the steps, in order
- Identify the parcel's municipality and zoning district; Passaic County land-use rules vary by municipality2.
- Obtain municipal zoning approval and apply to the applicable local enforcing agency for the UCC building permit; West Milford applicants use the township offices11521.
- If the home will use septic, obtain the health-board certification required before the building permit can issue3.
- Submit any subdivision to the Passaic County Planning Board with a complete application, required plans, files and fees426.
- Obtain an NJDOT access permit if the driveway connects to a state highway27.
- Stop for required construction inspections, secure permission before covering the septic system, and obtain the Certificate of Occupancy after final building inspections pass282429.
What to check before you buy land in Passaic County
Confirm the municipality, zoning district, sewer availability and health board before relying on a parcel listing; municipal land-use controls vary across Passaic County, and we could not confirm one septic authority for every address2. Only 11.4% of county soils are rated without severe limitations for a conventional drain field, so make septic feasibility an early contingency7. If land will be divided, every subdivision goes to the Passaic County Planning Board, and county approval in the Highlands Preservation Area may depend on additional municipal or Highlands approvals4. Published county development-review fees apply to qualifying subdivision and site-plan applications; for example, a sketch-plat minor subdivision starts at $425 plus $42 per new buildable lot30. Countywide, the effective property-tax rate is about 2.3%, and the median annual property-tax bill is about $10,0013132.
Watch-outs
- Building permits and zoning are administered locally, so confirm the applicable enforcing agency and zoning office for the parcel's municipality before applying12.
- Only about 11.4% of Passaic County's soils are rated free of severe limitations for a conventional septic drain field; plan for a site evaluation and possibly an alternative design on rural parcels7.
Sources
- Bulletin 06-1: Work Done Without Permits, quoted and re-checked
- Analysis of Impediments to Fair Housing Choice, quoted and re-checked
- New Jersey Statutes, R.S. 58:11-23 through 58:11-43 (New Jersey statewide rule), quoted and re-checked
- Passaic County Subdivision Resolution, quoted and re-checked
- Local (Regional) Code Enforcement Offices, quoted and re-checked
- Passaic County NJ State Plan Cross-Acceptance Response, quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- N.J.A.C. 5:23-2.15A Construction permit for a single-family residence, quoted and re-checked
- P.L. 2013, c.106 (Municipal Land Use Law amendments) (New Jersey statewide rule), quoted and re-checked
- P.L. 2013, c.106 (Municipal Land Use Law amendments) (New Jersey statewide rule), quoted and re-checked
- P.L. 2013, c.106 (Municipal Land Use Law amendments) (New Jersey statewide rule), quoted and re-checked
- Manufactured/Modular Buildings Program (New Jersey statewide rule), quoted and re-checked
- N.J.A.C. 5:23-2.14, Construction permits—when required (New Jersey statewide rule), quoted and re-checked
- Construction Code FAQs for New Home Buyers, quoted and re-checked
- West Milford Township Building Department (cit-e.net)
- Construction Code FAQs for New Home Buyers, quoted and re-checked
- Construction Code FAQs for New Home Buyers, quoted and re-checked
- New Jersey Uniform Construction Code, N.J.A.C. 5:23 (New Jersey statewide rule), quoted and re-checked
- New Jersey Uniform Construction Code, N.J.A.C. 5:23 (New Jersey statewide rule), quoted and re-checked
- Planning & Zoning - Township of West Milford, quoted and re-checked
- West Milford Township Zoning Office (cit-e.net)
- P.L. 2013, c.106 (Municipal Land Use Law amendments) (New Jersey statewide rule), quoted and re-checked
- P.L. 2013, c.106 (Municipal Land Use Law amendments) (New Jersey statewide rule), quoted and re-checked
- New Jersey Statutes, R.S. 58:11-23 through 58:11-43 (New Jersey statewide rule), quoted and re-checked
- Passaic County Health Department, Environmental Health (West Milford office) (cit-e.net)
- Passaic County Subdivision Resolution, quoted and re-checked
- Major Access Permits (New Jersey statewide rule), quoted and re-checked
- Construction Code FAQs for New Home Buyers, quoted and re-checked
- Construction Code FAQs for New Home Buyers, quoted and re-checked
- 2025-2027 Development Review Application and Guidelines for Site Plan and Subdivision Applications, quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written October 10, 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.