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

Hopewell Township’s own rules

• Building permitRequired

  Erection, construction, alteration, repair, remodeling, conversion, removal, or destruction of a building or structure inside Hopewell Township.

  • Exceptions may be provided by township ordinances or State law.
  • Where applicable, public improvements must be constructed, inspected, and approved before permit issuance, unless modified by an approved developer's agreement and construction phasing plan.

  “No one shall erect, construct, alter, repair, remodel, convert, remove or destroy any building or structure without first obtaining a building permit from the construction official except as expressly provided in these ordinances or by State law.”

• Certificate of occupancyRequired

  New construction, reconstruction, alteration, conversion, or installation of a structure or building inside Hopewell Township.

  • All applicable UCC, site plan, subdivision, and plot plan requirements must be satisfied.
  • An exception applies to an as-built grading survey for an addition to an existing single-family residence when the addition does not exceed 25% of gross floor area and does not require a bulk variance.
  • Unfinished site work may be covered by a performance guarantee.

  “A certificate of occupancy must be obtained pursuant to the Uniform Construction Code for all new constructions, reconstructions, alterations, conversions or installations of a structure or building.”

• Local zoningPresent

  Land inside Hopewell Township; the township adopts and administers its own zoning ordinance in Chapter 17.

  • Zoning requirements vary by district and use.

  “R-150 District: Residential Uses. Only single-family detached dwellings and conversions (section 17-145) are permitted as residential uses in this district.”

• Zoning districtsPublished

  Zoning districts inside Hopewell Township.

  • The code lists residential districts R-150, R-100, R-75, R-50, R-5, R-6, MRC, VRC, and multiple commercial, industrial, and inclusionary districts.
  • District-specific dimensional and use rules apply.

  “§ 17-159 RESIDENTIAL: R-150, R-100, R-75, R-50, R-5 AND R-6. § 17-160 MOUNTAIN RESOURCE CONSERVATION (MRC) AND VALLEY RESOURCE CONSERVATION (VRC) DISTRICTS.”

• Who permits septicLocal

  Onsite sewage disposal systems inside Hopewell Township.

  • Township requirements supplement N.J.A.C. 7:9A and may impose more stringent requirements.
  • The Township Board of Health administers the local requirements.

  “Applications for onsite sewage disposal systems shall be made to the board of health on the approved township application form.”

• Off-grid sanitationLimited

  Onsite sanitation using individual sewage disposal systems inside Hopewell Township.

  • Onsite systems are subject to township Board of Health approval, soil testing, lot-area, location, design, installation, and State N.J.A.C. 7:9A requirements.
  • Alternative systems and holding tanks are subject to additional conditions.

  “It is determined to be in the interest of public health, safety and welfare to develop an ordinance to provide site specific requirements in the conducting of soil testing, specifying lot area, restricting system locations and providing additional design and installation requirements for onsite sewage disposal systems in Hopewell Township. These requirements are in addition to N.J.A.C. 7:9A (Adopted by reference as Ordinance 16-3 on 7-16-1990).”

• Well permitRequired

  Locating, constructing, repairing, deepening, abandoning, decommissioning, altering, or using an existing well for a nonessential use inside Hopewell Township.

  • The Board of Health schedules and performs inspections as part of permit requirements.
  • Emergency no-water activity may proceed before inspection and permit, but the Board of Health must be notified as soon as possible and no later than the next business day.
  • A well-use certificate of compliance is required before operation.

  “No person shall locate, construct, repair, deepen, abandon, decommission or alter any well, or utilize an existing well for any nonessential use, without first receiving a well permit from the board of health.”

• Mandatory utility hookupConditional

  Connection of a home or other property inside Hopewell Township to a public sewer system.

  • Connection or an extension/addition to an existing connection requires Hopewell Township Committee approval when that approval is required or permitted by applicable law, regulations, rules, or a water quality management plan.
  • The ordinance excerpt does not establish a universal distance-to-sewer connection threshold.

  “No person shall be permitted to connect to any public sewer system, or to perform any extension or addition to an existing sewer connection, except through and with the approval of the Hopewell Township Committee, provided such Hopewell Township Committee approval is required or permitted pursuant to applicable law, regulations, rules or water quality management plan for the connection, extension or addition to or of a public sewer system, which approval must be received through the affirmative vote of not less than two-thirds of the full membership thereof.”

• Permit feesPublished (with conditions)

  Building permits inside Hopewell Township.

  • The cited fee is a minimum; other disciplines and permit types may have additional fees under Chapter 10 and applicable State schedules.

  minimum building permit fee: 65 USD

  “The minimum building permit fee shall be $65.”

Rules another office applies inside Hopewell Township

Hopewell Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

• InspectionsRequired

  UCC-regulated construction inside Hopewell Township.

  • Inspections are conducted during construction by the code official or inspector.
  • The local enforcing agency is the township Building Department under the State Uniform Construction Code.

  “During construction, the code official or inspector conducts regular inspections to ensure that the work performed complies with the UCC. The permit applicant is responsible for notifying the local enforcing agency that the project is ready for inspection.”

• Minimum lot sizeSpecified

  Single-family detached dwellings in Hopewell Township's R-150 Residential District; district-specific township zoning rule.

  • For non-cluster design, the minimum lot area is 60,000 square feet.
  • For cluster design, the minimum lot area is 40,000 square feet.
  • The cited district also specifies minimum width, depth, yards, height, coverage, and density.

  minimum lot area: 60000 square feet (40,000 square feet for cluster design)

  “R-150 | Non-Cluster Design | Cluster Design (Section 17-79) Minimum Lot Area | 60,000 square feet | 40,000 square feet”

• SetbacksSpecified

  Single-family detached dwellings in Hopewell Township's R-150 Residential District; district-specific township zoning rule.

  • For non-cluster design, front yard is 75 feet, each side yard is 50 feet, and rear yard is 50 feet.
  • For cluster design, each side yard is 40 feet; front and rear yards remain 75 and 50 feet respectively.

  minimum front yard: 75 feet · minimum side yard: 50 feet (40 feet each for cluster design) · minimum rear yard: 50 feet

  “Minimum Front Yard | 75 feet | 75 feet Minimum Side Yard | 50 feet ea. | 40 feet ea. Minimum Rear Yard | 50 feet | 50 feet”

• Lot coverageSpecified

  Single-family detached dwellings in Hopewell Township's R-150 Residential District; district-specific township zoning rule.

  • Maximum lot coverage is 15% for both non-cluster and cluster design.

  maximum lot coverage: 15 percent

  “Maximum Lot Coverage | 15% | 15% Minimum Open Space | — | 25%”

Still unanswered

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

• Minimum dwelling size — Single-family dwellings inside Hopewell Township.
• Living in an RV — Occupancy of a recreational vehicle as a residence on land inside Hopewell Township.
• Camping on your land — Temporary camping on private land inside Hopewell Township.
• Tiny homes — Tiny-home occupancy on land inside Hopewell Township.
• Manufactured homes — Manufactured-home occupancy on land inside Hopewell Township.

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.

Off-grid gear

Going off-grid in Hopewell Township 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.

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