Bolthole Index

Sussex County, New Jersey

Zoning, building permits and septic rules in Borough of Hopatcong, New Jersey

Borough of Hopatcong is a borough in Sussex County, New Jersey. Borough of Hopatcong adopts its own zoning, so inside its limits Borough of Hopatcong’s rules apply, not the county’s. 8 rules below are quoted from official sources and independently re-checked, most recently on October 23, 2026. Rules for unincorporated land are on the Sussex County page.

Answers from the rulebook for Borough of Hopatcong

Borough of Hopatcong’s own rules

  • Local zoningPresent (with conditions)

    Land inside Hopatcong borough limits: the borough's own zoning ordinance (Chapter 242, Zoning) governs use and bulk standards.

    • Dimensional and use rules differ by zone; see the zone-specific claims.
    “chapter 242 zoning (§ 242-1 – § 242-84)”
  • Zoning districtsPartial

    Zoning districts inside Hopatcong borough limits (Chapter 242).

    • Only the R-1 and R-2 zone requirements were read on the official page; the full zone list (Article III) and other zones were not opened.
    • A third-party mirror lists an R-3 zone with three-acre lots; this was not verified on the official page.
    “d. requirements. area, yard and building requirements shall be as follows: (1) minimum lot size: 60,000 square feet.”
  • Minimum lot sizeSpecified

    New lots and building lots in the R-1 zone inside Hopatcong borough limits.

    • Minimum lot width: interior 120 feet; corner 145 feet.
    • Minimum lot depth: 100 feet.
    • The R-1 zone is labeled single-family only by a third-party mirror; the official page confirms the zone's requirements block, not its label.

    minimum lot size: 15000 square feet · minimum lot width, interior: 120 feet · minimum lot width, corner: 145 feet · minimum lot depth: 100 feet

    “d. requirements. area, yard and building requirements shall be as follows: (1) minimum lot size: 15,000 square feet. (2) minimum lot width. (a) interior: 120 feet. (b) corner: 145 feet. (3) minimum lot depth: 100 feet.”
    One more reviewed finding on this topic
    • Specified — New lots in the R-2 zone inside Hopatcong borough limits.
      “d. requirements. area, yard and building requirements shall be as follows: (1) minimum lot size: 60,000 square feet. (2) minimum lot width. (a) interior: 150 feet. (b) corner: 175 feet. (3) minimum lot depth: 150 feet.”
  • SetbacksDistrict specific (with conditions)

    Principal buildings in the R-1 zone inside Hopatcong borough limits.

    • Front setback may be reduced to the prevailing setback line on developed streets, but not closer than 20 feet to the right-of-way line, on zoning officer approval with adequate documentation.
    • Side yard figure stated for existing nonconforming lots 80 feet wide or less is cut off in the captured text and is not reported here.

    minimum front yard setback: 40 feet (may be reduced to prevailing setback on developed streets, not closer than 20 feet to right-of-way) · minimum side yard setback, each side, principal buildings: 15 feet (existing nonconforming lots 80 feet wide or less have a separate rule)

    “(4) minimum front yard setback: 40 feet; provided, however, that as to lots on developed streets, the zoning officer may, upon receipt of adequate documentation, issue a permit to construct a dwelling in accordance with the prevailing setback line of buildings upon said street, but not closer than 20 feet to the right-of-way line.”
    One more reviewed finding on this topic
    • District specific (with conditions) — Principal and accessory buildings in the R-2 zone inside Hopatcong borough limits.
      “(4) minimum front yard setback: 50 feet or that prevailing for adjacent lots on the same street frontage, but not less than 30 feet. (5) minimum side yard setback. (a) each side: 30 feet for principal buildings. (b) each side: 30 feet for accessory uses.”
  • Building heightSpecified

    Buildings in the R-2 zone inside Hopatcong borough limits.

    • Height limit stated in the R-2 requirements block; the R-1 height limit was not found in the captured text.

    maximum building height: <= 35 feet (or 2 1/2 stories, whichever is lesser)

    “(7) maximum building height: the lesser of 35 feet or 2 1/2 stories.”
  • Subdividing landRegulated (with conditions)

    Division of land inside Hopatcong borough limits.

    • The borough code contains a subdivision chapter; its approval steps and standards were not opened.
    “chapter 209 subdivision of land (§ 209-1 &ndash; § 209-42)”

Still unanswered

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

  • Building permit — Building permits for new homes inside Hopatcong borough limits.
  • Owner-builder exemption — Owner-builder permit exemption inside Hopatcong borough limits.
  • Building code adopted — Building code adoption inside Hopatcong borough limits.
  • Inspections — Building inspections inside Hopatcong borough limits.
  • Certificate of occupancy — Certificates of occupancy inside Hopatcong borough limits.
19 more unanswered
  • Minimum dwelling size
  • Lot coverage
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees
  • Permit process

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

Off-grid gear

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

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