Bolthole Index

Essex County, New Jersey

Building permits, zoning and septic rules in Millburn Township, New Jersey

Millburn Township, New Jersey requires a construction permit from its own Construction Code Enforcing Agency for new building work1. The township adopts and administers its own zoning ordinance2. Septic and cesspool work needs a permit from the Millburn Board of Health3. Living in a trailer, camper or boat is prohibited on private land4.

At a glance

Building permit
Required; issued by the township's Construction Code Enforcing Agency15
Zoning
Yes, the township's own zoning ordinance and districts2
Septic
Permit from the Millburn Board of Health3
RV or camper as a dwelling
Prohibited on private land4
Accessory dwelling units
Prohibited in all residential districts6
Owner-builder
Allowed with a permit, inspections and a state affidavit7
Floodplain
Separate floodplain permit from the Floodplain Administrator8
Wells
State drilling permit from NJDEP9

Who to call

Building permits

Millburn Township Building Department (Construction Code Enforcing Agency)

Construction permit applications, inspections and certificates of occupancy inside Millburn Township

973-564-7055

22 East Willow St. Millburn, NJ 07041

Zoning

Millburn Township Planning/Zoning (Building Department)

Zoning review, zoning calculation forms and referrals to the Zoning Board of Adjustment

973-564-7055

22 East Willow St. Millburn, NJ 07041

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

Off-grid gear

Going off-grid in Millburn Township means bringing your own water and power. The kit we’d start with:

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Does Millburn Township, NJ have zoning, and what does it mean for lot size and setbacks?

Millburn Township adopts and administers its own Development Regulations and Zoning Ordinance, and the ordinance divides the township into zoning districts shown on its Zoning Map2. Essex County does not zone; in New Jersey that power sits with the municipality10.

Standards change by district, so look up the parcel's district first. In the R-7 Residential District, a one-family lot needs at least 4,000 square feet of area and 40 feet of width11. R-7 one-family buildings are limited to 32 feet and 2.5 stories, with a floor area ratio of 38%12. The R-7 rear setback is the greater of 20 feet or 20% of lot depth, and the front setback uses the average established setback or 24 feet13. Other districts have their own tables. We could not confirm a minimum dwelling floor area; ask the Millburn zoning official.

Do you need a building permit in Millburn Township, and who issues it?

Yes. Construction inside Millburn Township is administered by the Millburn Construction Code Enforcing Agency under the New Jersey State Uniform Construction Code1. A construction permit is required for new construction and for structural, plumbing, mechanical and electrical work on existing buildings14. Fees are set by municipal ordinance, so ask the Building Department for the current schedule15.

Before the framing inspection, a licensed New Jersey land surveyor's height certification must be filed with the Construction Office16. Before a certificate of occupancy issues, an as-built survey is reviewed for setbacks, lot coverage and height17. Contact the18 for applications and inspections.

How do septic permits work inside Millburn Township?

Septic permits inside Millburn Township come from the Board of Health, not the Building Department. No connection or alteration between a septic tank or cesspool and a building may be made without a Board of Health permit19. State law also bars issuing a building permit until the board of health has certified the sewerage facilities, and requires inspection before any septic system is covered2021.

Most of the township is sewered. Buildings on a street where a sewer is operating must connect on the connection date, and Board of Health code requires connection within 30 days after written notice22. Where a septic field is still possible, soils are a constraint: only about 2.2% of Essex County soils rate as not limited for a conventional drain field23. The township's wells and private water supply rules we could not confirm; drilling a well needs a state permit9.

Can you live in an RV, camper or tiny home in Millburn Township?

No. Millburn Township prohibits using a trailer, camper or boat for dwelling purposes or as sleeping quarters on private land4. Exceptions cover a building that has been damaged and a construction office during construction under a temporary permit from the Construction Official4. Parking or storing a camper on private premises is allowed in rear-yard areas only4.

Accessory dwelling units are prohibited in all residential zoning districts, so a backyard cottage or tiny home as a second dwelling on a lot is not an option6. We could not confirm a township rule for tiny homes as a primary dwelling; ask the zoning official before buying.

Building a home in Millburn Township: the steps, in order

  1. Confirm the parcel's zoning district and its lot, setback and height limits with the Millburn zoning official2.
  2. Check flood status; development in a flood hazard area needs a permit from the Floodplain Administrator, possibly in addition to the building permit8.
  3. Settle sewer or septic with the Board of Health3.
  4. Apply for the construction permit with the181.
  5. Pass the required inspections, including footings, rough plumbing and electrical, and framing24.
  6. File the as-built survey and obtain the certificate of occupancy17.

An owner who builds their own new home may do so with a permit and inspections, but must file a state affidavit before a certificate of occupancy issues7.

What stays with Essex County, and what to check before you buy in Millburn?

Zoning and building permits are municipal in Millburn, so the Essex County planning counter is not the right office for either. The county's own page covers land outside the township: Essex County. Septic permits inside Millburn stay with the township Board of Health3, and well drilling permits come from the state9.

Before you buy, check the flood hazard status of the lot8, and whether the street is sewered22. Essex County's typical home value is about $675,065 and its effective property tax rate is about 2%2526. Short-term rentals are limited in several residential districts under Section 4-42 of the township's ordinances27.

Watch-outs

  • Millburn's municipal offices are listed at 22 East Willow Street as a temporary location, so confirm the address and hours before visiting18.
  • We could not confirm an owner-builder permit exemption, a farm-building exemption or driveway permit rules inside Millburn Township; call the Building Department at 973-564-705518.
  • Ordinary maintenance and a certificate of occupancy for minor work follow state rules, so ask the Construction Official whether a small project needs a permit28.
  • A driveway that meets a state highway needs a state access permit29.

Sources

  1. Chapter 9 Building and Housing (Millburn Township), quoted and re-checked
  2. Article 6 Zoning Provisions (Millburn Township), quoted and re-checked
  3. Chapter BH7 Disposal of Waste Water (Millburn Township), quoted and re-checked
  4. Township of Millburn Zoning Provisions (Millburn Township), quoted and re-checked
  5. City of Newark - Building Division / Office of UCC (2026 county census)
  6. Article 6 Zoning Provisions (Millburn Township), quoted and re-checked
  7. nj.gov, quoted and re-checked
  8. Floodplain Management Regulations (Millburn Township), quoted and re-checked
  9. Bulletin 88-10: Private On-Site Water Supply Systems (New Jersey statewide rule), quoted and re-checked
  10. P.L. 2013, c.106 — Municipal Land Use Law amendments (New Jersey statewide rule), quoted and re-checked
  11. ecode360.com (Millburn Township), quoted and re-checked
  12. ecode360.com (Millburn Township), quoted and re-checked
  13. ecode360.com (Millburn Township), quoted and re-checked
  14. The New Jersey State Uniform Construction Code, quoted and re-checked
  15. The New Jersey State Uniform Construction Code, quoted and re-checked
  16. Chapter 9 Building and Housing (Millburn Township), quoted and re-checked
  17. Chapter 9 Building and Housing (Millburn Township), quoted and re-checked
  18. Millburn Township Building Department (Construction Code Enforcing Agency) (twp.millburn.nj.us)
  19. Chapter BH7 Disposal of Waste Water (Millburn Township), quoted and re-checked
  20. New Jersey Statutes, R.S. 58:11-23 through 58:11-43 (New Jersey statewide rule), quoted and re-checked
  21. New Jersey Statutes, R.S. 58:11-23 through 58:11-43 (New Jersey statewide rule), quoted and re-checked
  22. Chapter 9 Building and Housing (Millburn Township), quoted and re-checked
  23. 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
  24. Construction Code FAQs for New Home Buyers, quoted and re-checked
  25. Typical home value (Zillow): Bolthole Index county data
  26. Effective property tax rate: Bolthole Index county data
  27. ecode360.com (Millburn Township), quoted and re-checked
  28. N.J.A.C. 5:23, Uniform Construction Code (New Jersey statewide rule), quoted and re-checked
  29. Major Access Permits (New Jersey statewide rule), quoted and re-checked

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.

Answers from the rulebook for Millburn Township

Millburn Township’s own rules

  • Building code adoptedAdopted (with conditions)

    Construction inside Millburn township is administered by the Millburn Construction Code Enforcing Agency under the New Jersey State Uniform Construction Code.

    • The agency administers the State Uniform Construction Code and State Uniform Construction Code Act.
    “State Uniform Construction Code enforcing agency”
  • InspectionsRequired

    Construction inside Millburn township subject to the State Uniform Construction Code.

    • Before building-framing inspection, a licensed New Jersey land surveyor's height-compliance certification must be filed with the Construction Office.
    “The enforcing agency will administer the provisions of the State Uniform Construction Code Ordinance in accordance with N.J.S.A. 52:27D-132. Prior to inspection of building framing, a certification, with supporting documentation, signed by a licensed land surveyor registered in the State of New Jersey shall be filed with the Construction Office who shall review same to assure compliance with applicable height restrictions.”
  • Certificate of occupancyRequired

    Buildings and structures inside Millburn township requiring a certificate of occupancy.

    • The enforcing agency administers the State Uniform Construction Code certificate-of-occupancy provisions.
    • Before issuance, an as-built survey by a licensed New Jersey land surveyor must be filed and reviewed for zoning compliance, including setbacks, lot coverage, building coverage, accessory-use coverage, and height.
    “Prior to the issuance of a certificate of occupancy”
  • Local zoningPresent

    Land inside Millburn township's limits; the township adopts and administers its own Development Regulations and Zoning Ordinance.

    • The ordinance divides the Township into zoning districts shown on the Zoning Map.
    “the Township is hereby divided into zoning districts”
  • Minimum lot sizeSpecified

    One-family dwellings in the R-7 Residential District inside Millburn township.

    • The R-7 table separately lists one-family and two-family standards.

    minimum lot area: 4000 square feet · minimum lot width: 40 feet

    “1. | Minimums. | One-Family | Two-Family | (a) | Lot area-square feet | 4,000 | 5,000 | (b) | Lot width-feet | 40 | 50”
  • SetbacksSpecified

    One-family dwellings in the R-7 Residential District inside Millburn township.

    • Front setbacks use the average established setback or 24 feet.
    • For undeveloped areas, the general note states the front setback minimum is 40 feet.
    • The side setback varies by building height; the rear setback is the greater of 20 feet or 20% of lot depth.

    front setback: average established setback or 24 feet (If the area has no development, minimum 40 feet) · side setback up to 18 feet height: 4 feet (One-family R-7) · side setback at 32 feet height: 8 feet (One-family R-7) · rear setback: greater of 20 feet or 20% of lot depth

    “Rear setback-depth-feet Greater of 20 feet or 20% of lot depth”
  • Building heightSpecified

    One-family dwellings in the R-7 Residential District inside Millburn township.

    • The table limits both height in feet and stories.

    maximum building height: 32 feet · maximum building height: 2.5 stories

    “(c) | Building height-feet | 32 | 32 (d) | Floor area ratio | 38% | 38% (e) | Building height-stories | 2.5 | 2.5”
  • Living in an RVProhibited

    Use of trailers, campers, or boats for dwelling purposes or as sleeping quarters on private land inside Millburn township.

    • Temporary use is allowed when a building has been damaged.
    • Temporary use as a construction office is allowed during construction only when the Construction Official issues a temporary permit.
    • Parking or storage on private premises is not prohibited, but must be in rear-yard areas only.
    “No trailer, camper or boat shall be used for dwelling purposes or as sleeping quarters”
  • Accessory dwellingsProhibited

    Accessory dwelling units in all residential zoning districts inside Millburn township.

    • The ordinance defines an ADU as a self-contained unit with permanent living, sleeping, eating, cooking, and sanitation provisions on the same lot as a principal dwelling.
    • The ordinance treats an ADU as a second principal residential dwelling and states that multiple principal uses are not allowed.
    “Accessory Dwelling Units (ADUs) are prohibited in all residential zoning districts.”
  • Who permits septicLocal (with conditions)

    Septic and cesspool connections inside Millburn township.

    • The Board of Health issues the permit for connection or alteration involving a septic tank or cesspool.
    “No connection nor alteration of such connection shall be made between any septic tank or cesspool and any ground, building, structure or place of business without a permit for that purpose obtained from the Board of Health.”
  • Septic permitRequired

    Any connection or alteration between a septic tank or cesspool and land, a building, structure, or place of business inside Millburn township.

    • A permit must be obtained from the Board of Health before the connection or alteration.
    “No connection nor alteration of such connection shall be made between any septic tank or cesspool and any ground, building, structure or place of business without a permit for that purpose obtained from the Board of Health.”
  • Mandatory utility hookupSewer (with conditions)

    Buildings on public streets or easements inside Millburn township where a sewer is constructed and operating or later becomes constructed and operating.

    • The building must connect on the sewer connection date.
    • The connection point is designated by the Township Engineer.
    • The Board of Health code separately requires connection within 30 days after written notice for property abutting a street where a sewer is laid.

    notice compliance period: 30 days

    “shall connect their houses and other buildings therewith”
  • Building in a floodplainRequired

    Any development in a flood hazard area inside Millburn township.

    • The applicant must apply to the Floodplain Administrator and obtain the required permit.
    • A floodplain development permit or approval may be required in addition to a building permit.
    • Necessary federal or state permits must be obtained before development approval.
    • Development for which a permit is required is subject to inspection.
    “shall first make application to the Floodplain Administrator and shall obtain the required permit.”
  • Short-term rentalsLimited

    Short-term rentals in the R-3, R-4, R-5, and R-6 residential districts inside Millburn township.

    • Short-term rentals are referenced as accessory uses and are regulated by § 4-42 of the Revised General Ordinances.
    • The opened source did not reproduce the complete § 4-42 restrictions.
    “Short-term rentals as defined herein and as regulated by Section 4-42 of the Revised General Ordinances of the Township of Millburn.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Millburn Township or Essex County directly.

  • Owner-builder exemption — Owner-builder exemptions for construction inside Millburn township.
  • Minimum dwelling size — Minimum dwelling size in Millburn township residential districts.
  • Camping on your land — Temporary camping generally inside Millburn township.
  • Tiny homes — Tiny-home occupancy inside Millburn township.
  • Manufactured homes — Manufactured-home occupancy generally inside Millburn township.
4 more unanswered
  • Septic inspection
  • Well permit
  • Agricultural exemption
  • Driveway access

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Millburn Township publishes no rule on the point, not that none exists. Essex County’s page lists the county offices to call.

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