Bolthole Index

Sussex County, New Jersey

Zoning, building permits and septic rules in Hardyston Township, New Jersey

Hardyston Township, in Sussex County, New Jersey, requires a building permit before you erect, add to or alter any building1. The township writes and enforces its own zoning ordinance2, while Sussex County has no zoning power3. Septic permits for every address in the county come from the Sussex County Division of Health4.

At a glance

Building permit
Required; issued by the township's construction office1
Zoning
Township Chapter 185, enforced by the zoning officer25
Septic
Sussex County Division of Health (Office of Environmental Health)4
RV or mobile home as a dwelling
Limited to licensed trailer parks, with narrow exceptions6
Owner-builder
Owner may build a home for personal use; permits, inspections and an affidavit still apply78
Wells
State drilling permit; municipal or county health officials issue the construction permit9

Who to call

Building permits

Hardyston Township Building Department (Construction Office)

Building permits, inspections and certificates of occupancy inside Hardyston Township

973-823-7020

construction@hardyston.com

149 Wheatsworth Road, Hardyston

Online permits →

Zoning

Hardyston Township Zoning Office

Zoning permits and zoning questions for land inside Hardyston Township

973-823-7020

zoning@hardyston.com

149 Wheatsworth Road, Hardyston

Septic permits

Sussex County Office of Environmental Health (Division of Health)

Septic system permits, plan records and inspections for Sussex County

973-579-0370

201 Wheatsworth Road, Hamburg, NJ 07419

Contact details are copied from each office’s official page and were checked against it on October 24, 2026.

Off-grid gear

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

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Do you need a building permit in Hardyston Township, NJ?

Yes. Hardyston Township prohibits erecting, constructing, adding to, enlarging or altering any building or structure without a building permit under the state Uniform Construction Code1. A new single-family house also needs a detailed site plan approved before the permit is issued1. A driveway built on its own from the street to an existing building needs an approved sketch10. A driveway that connects to a state highway needs a New Jersey DOT access permit as well11.

No building may be used until the construction official issues a certificate of occupancy12. Existing dwellings can also need a certificate of continued occupancy when ownership changes13.

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

The Hardyston Township Building Department enforces the New Jersey Uniform Construction Code and issues building permits and certificates of occupancy14. Call 973-823-7020 or email construction@hardyston.com; the office is in the municipal building at 149 Wheatsworth Road14. Applications and inspection requests run through the township's online permit portal14. We could not confirm the permit fee schedule, so ask the Building Department what a permit will cost.

Sussex County does not issue building permits; municipalities do15.

Does Hardyston Township have zoning, and what does it mean for RVs, lot size and setbacks?

Yes. Hardyston adopts and administers its own zoning ordinance, Chapter 1852, and divides the township into zoning districts16. The rules depend on the district, so check your parcel's district with the Zoning Office before you buy17.

In the R-3 Single-Family, Lakeside Residential district, lots need at least 15,000 square feet (20,000 for corner lots) and 100 feet of width18. Principal buildings need a 30-foot front yard, 10-foot minimum side yards totaling 30 feet, and a 30-foot rear yard19. Impervious surfaces are capped at 20% of the lot20, and buildings top out at 2.5 stories or 30 feet, whichever is less21. We did not verify a rural or agricultural district's numbers.

We could not confirm a minimum home size, rules on accessory dwellings or tiny homes, or short-term rental limits; ask the zoning officer.

How do septic permits work in Hardyston Township, NJ?

Septic permits for Hardyston addresses come from the Sussex County Division of Health, Office of Environmental Health, not from the township4. New Jersey law bars issuing a building permit until the board of health having jurisdiction certifies the sewerage facilities22, so start septic before you apply for a building permit. A system must be inspected before it is covered23. The county lists a $150 fee for a standard residential system with four required inspections24.

Only about 5% of soils in Sussex County rate as not limited for a conventional drain field25: expect a site evaluation and possibly an engineered system. Whether the township requires sewer or water hookups where lines exist is unconfirmed; ask the Building Department. Private wells need a New Jersey DEP drilling permit, with municipal or county health officials issuing the construction permit9.

Can you live in an RV, mobile home or tiny home in Hardyston Township?

Mostly no, outside a licensed park. Hardyston bars parking or keeping a trailer or mobile home for dwelling use anywhere in the township except a licensed trailer court, camp, park or mobile home park, with narrow exceptions such as a unit parked in a building closed on all sides or grandfathered trailers licensed as of December 6, 19666. Licensed parks must be at least two acres with 200 feet of frontage6. So living in an RV on a vacant lot is not an option the township's ordinance supports.

We could not confirm a tiny-home or temporary-camping rule; ask the Zoning Office before relying on either.

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

  1. Ask the Zoning Office which district the parcel is in and what it allows17.
  2. Contact the Sussex County Division of Health about a septic site evaluation and permit; the board of health must certify sewerage facilities before a building permit issues22.
  3. Submit a detailed site plan with the building permit application5.
  4. Get the building permit from the Building Department14, and a state highway access permit if the driveway meets a state road11.
  5. Schedule the required inspections during construction26.
  6. Obtain the certificate of occupancy before moving in12. An owner who builds their own home must file an affidavit with the construction official first8.

What stays with Sussex County, and what to check before you buy in Hardyston

Sussex County does not set zoning3; its Planning Board reviews site plan and subdivision applications27. Hardyston's own subdivision rules are in Chapter 158 of the township code28. Land outside Hardyston's limits is covered on the Sussex County page.

County-wide, typical home value is about $451,87229 and the effective property tax rate is 2.5%30. Wooded land covers about 83.8% of the county31. Check flood-hazard rules, which we could not confirm, with the Building Department.

Watch-outs

  • Hardyston's schedule of area and yard requirements is unofficial; the text of Chapter 185 controls16.
  • We could not confirm Hardyston's permit fees, minimum home size, accessory dwelling, tiny home or short-term rental rules; call the Building Department or Zoning Office before you buy1417.
  • Owner-builders are exempt only from new-home builder registration, not from permits or inspections7.

Sources

  1. Chapter 62 Building Construction - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  2. Township of Hardyston, NJ Code - Table of Contents (eCode360) (Hardyston Township), quoted and re-checked
  3. P.L. 2013, c.106 — Municipal Land Use Law amendments (New Jersey statewide rule), quoted and re-checked
  4. Septic Systems (2026 county census)
  5. Chapter 185 Zoning, Article XXI Administration and Enforcement - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  6. Chapter 167 Trailers - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  7. Builder Registration and New Home Warranty for Builders (New Jersey statewide rule), quoted and re-checked
  8. N.J.A.C. 5:23, Uniform Construction Code (New Jersey statewide rule), quoted and re-checked
  9. Bulletin 88-10: Private On-Site Water Supply Systems (New Jersey statewide rule), quoted and re-checked
  10. Chapter 62 Building Construction - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  11. Major Access Permits (New Jersey statewide rule), quoted and re-checked
  12. Chapter 185 Zoning, Article XXI Administration and Enforcement - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  13. Chapter 62 Building Construction - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  14. Hardyston Township Building Department (Construction Office) (hardyston.com)
  15. sussex.nj.us, quoted and re-checked
  16. Chapter 185 Zoning, Article II Intent; Zoning Classifications; Map - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  17. Hardyston Township Zoning Office (hardyston.com)
  18. Chapter 185 Zoning, Article VI R-3 Single-Family Lakeside Residential District - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  19. Chapter 185 Zoning, Article VI R-3 Single-Family Lakeside Residential District - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  20. Chapter 185 Zoning, Article VI R-3 Single-Family Lakeside Residential District - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  21. Chapter 185 Zoning, Article VI R-3 Single-Family Lakeside Residential District - Township of Hardyston, NJ (eCode360) (Hardyston Township), quoted and re-checked
  22. New Jersey Statutes, R.S. 58:11-23 through 58:11-43 (New Jersey statewide rule), quoted and re-checked
  23. New Jersey Statutes, R.S. 58:11-23 through 58:11-43 (New Jersey statewide rule), quoted and re-checked
  24. CEHA Activities & Fees, quoted and re-checked
  25. 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
  26. New Jersey Uniform Construction Code consumer information, quoted and re-checked
  27. Planning & Economic Development, quoted and re-checked
  28. Township of Hardyston, NJ Code - Table of Contents (eCode360) (Hardyston Township), quoted and re-checked
  29. Typical home value (Zillow): Bolthole Index county data
  30. Effective property tax rate: Bolthole Index county data
  31. Wooded share of land: Bolthole Index county data

Written October 24, 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 Hardyston Township

Hardyston Township’s own rules

  • Building permitRequired

    Erecting, constructing, adding to, enlarging or altering a building or structure inside Hardyston township, NJ

    • Permit is issued by the township's uniform construction code enforcing agency under the state act (§ 62-1.b).
    • Single-family dwellings also require a detailed site plan before permit issuance (§ 62-4).
    “no person shall erect or construct or proceed with the erection or construction of any building or structure nor add to, enlarge or alter any building or structure or cause the same to be done without first obtaining a building permit in accordance with the uniform construction code act and the regulations.”
  • InspectionsLimited

    Inspections tied to change of ownership or occupancy of existing dwellings in Hardyston township, NJ (certificate of continued occupancy)

    • The construction official may waive all inspection requirements for transfers between immediate family members, or where premises are bought for demolition with a demolition permit applied for (§ 62-13.e).
    • Smoke detectors must be installed before any certificate of occupancy or continued occupancy issues (§ 62-13.f).
    “e. exemptions. the construction official may waive all inspection requirements whenever the transfer of title or occupancy is between immediate members of a family, including but not limited to husband and wife, or where the premises are purchased specifically for the building thereon to be demolished and a demolition permit has been applied for.”
  • Certificate of occupancyRequired

    Any building hereafter erected, altered, converted or enlarged in Hardyston township, NJ, before use

    • Certificate is issued by the construction official (§ 185-86).
    • New construction is not occupied until final completion and a certificate of occupancy is issued by the building official; a temporary certificate for up to 45 days may issue if Board of Health requirements are met (§ 62-12).
    • A temporary certificate of occupancy may be issued for a use related to a permitted use, if the building meets the New Jersey UCC and a bond is posted (§ 185-89).
    “it shall be unlawful for an owner to use or permit the use of any building or part thereof hereafter erected, altered, converted or enlarged, wholly or in part, until a certificate of occupancy shall have been issued by the construction official.”
  • Local zoningPresent (with conditions)

    All land inside Hardyston township limits; the township adopts and administers its own zoning ordinance (Chapter 185, Zoning Ordinance of the Township of Hardyston)

    • The zone map is dated August 28, 2019 and fixes district boundaries (§ 185-7); the schedule of area and yard requirements kept by the zoning officer is unofficial and the text of the chapter prevails.
    “this chapter shall be known and cited as the "zoning ordinance of the township of hardyston."”
  • Zoning districtsPublished

    Zoning districts of Hardyston township, NJ (Chapter 185, § 185-6)

    • The schedule of area, yard and building requirements is unofficial; the chapter text prevails (§ 185-9).
    “for the purpose of this chapter, the township of hardyston is hereby divided into districts or zones, to be designated as follows:”
  • Minimum lot sizeDistrict specific (with conditions)

    R-3 Single-Family, Lakeside Residential district in Hardyston township, NJ (main single-family residential district); no agricultural or rural-residential district was verified

    • Corner lots require 20,000 square feet.
    • Minimum lot width is 100 feet; corner lots need a minimum frontage of 125 feet on both streets (§ 185-31.b).

    minimum lot area: >= 15000 square feet (corner lots shall contain 20,000 square feet) · minimum lot width: >= 100 feet (corner lots minimum frontage of 125 feet on both streets)

    “a. minimum lot area: 15,000 square feet, except that corner lots shall contain 20,000 square feet.”
  • SetbacksDistrict specific (with conditions)

    R-3 Single-Family, Lakeside Residential district in Hardyston township, NJ (principal structures)

    • Accessory-structure setbacks are governed by other provisions of the R-3 section and § 185-18 (lakefront lots) and were not verified.

    front yard: >= 30 feet · minimum side yard: >= 10 feet · total of two side yards: >= 30 feet · rear yard: >= 30 feet

    “c. yard requirements: (1) front yard: 30 feet. (2) minimum side yard: 10 feet. (3) total of two side yards: 30 feet. (4) rear yard: 30 feet.”
  • Lot coverageDistrict specific (with conditions)

    R-3 Single-Family, Lakeside Residential district in Hardyston township, NJ

    • Limit applies to impervious surfaces.

    maximum lot coverage by impervious surfaces: <= 20 percent

    “d. maximum percent of lot coverage by impervious surfaces: 20%.”
  • Building heightDistrict specific (with conditions)

    R-3 Single-Family, Lakeside Residential district in Hardyston township, NJ

    • Pitched-roof elements such as towers, hips, gables and spires may extend no more than five feet above the maximum permitted height limit (§ 185-31.e(2)).

    maximum height: <= 2.5 stories (or 30 feet, whichever is less) · maximum height: <= 30 feet (or 2.5 stories, whichever is less)

    “e. maximum height: [amended 3-1-2011 by ord. no. 2011-01] (1) two and one-half stories or 30 feet, whichever is less.”
  • Manufactured homesLimited

    Mobile homes and trailers used for dwelling purposes anywhere in Hardyston township, NJ, outside licensed trailer parks

    • Occupancy is allowed only in a licensed trailer court, camp, park or mobile home park, or in the listed exceptions (§ 167-9): a unit parked in a building closed on all sides; a unit parked not more than eight hours on a public street where parking is lawful; and grandfathered owners of trailers licensed as of December 6, 1966.
    • Licensed trailer parks must be at least two acres with at least 200 feet of frontage (§ 167-7.a).
    “no person shall park or maintain a trailer or mobile home within the township other than at a licensed trailer court, camp, park or mobile home park, except in the following instances:”
  • Subdividing landRegulated (with conditions)

    Land subdivision inside Hardyston township, NJ

    • Subdivision is governed by Chapter 158, Subdivision of Land (§ 158-1 to § 158-25), which was not opened.
    “chapter 158 subdivision of land (§ 158-1 &ndash; § 158-25)”
  • Driveway accessRequired

    A driveway built alone from the street to an existing building in Hardyston township, NJ

    • A driveway sketch must be approved by the building inspector or other township-designated official (§ 62-2).
    “where an applicant desires to construct a driveway alone from the street to a building or structure existing on a parcel of land, the applicant shall submit a sketch showing the location and nature of materials for the driveway from the street to the structure”
  • Permit processPartial

    Building and zoning permit process in Hardyston township, NJ

    • Single-family permits require a detailed site plan reviewed by the township engineer before issuance (§ 62-4, § 62-5).
    • Zoning enforcement is by the zoning officer under Chapter 185, Article XXI (§ 185-83).
    • Application forms, filing steps and timelines beyond these sections were not located.
    “prior to the issuance of a building permit for any single-family dwelling, the applicant for the permit shall submit to the building inspector for his or her approval two copies of a detailed site plan”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemption from permits in Hardyston township, NJ
  • Minimum dwelling size — Minimum dwelling floor area in Hardyston township, NJ
  • Camping on your land — Temporary camping on private land in Hardyston township, NJ
  • Tiny homes — Tiny home occupancy in Hardyston township, NJ
  • Accessory dwellings — Accessory dwelling units in Hardyston township, NJ
10 more unanswered
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

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 Hardyston Township publishes no rule on the point, not that none exists. Sussex County’s page lists the county offices to call.

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