Bolthole Index

Union County, New Jersey

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

Borough of Garwood is a borough in Union County, New Jersey. Borough of Garwood adopts its own zoning, so inside its limits Borough of Garwood’s rules apply, not the county’s. 13 rules below are quoted from official sources and independently re-checked, most recently on October 12, 2026. Rules for unincorporated land are on the Union County page.

Answers from the rulebook for Borough of Garwood

Borough of Garwood’s own rules

  • Local zoningPresent

    All land, structures, and uses inside Garwood borough.

    • The code states that zoning affects all land, structures, and uses and that uses not expressly permitted are prohibited.
    “For the purposes of this chapter, the Borough of Garwood is hereby divided into zones differentiated as to use and bulk regulations and to be designated as follows:”
  • Zoning districtsPublished

    Land inside Garwood borough.

    • The zoning map is incorporated into the chapter and is on file in the Borough Clerk's office.
    • The code identifies RA, RA1, RB, CBD, GBD, CC, LI, ID, T, POS, PL, and MUD districts.
    “For the purposes of this chapter, the Borough of Garwood is hereby divided into zones differentiated as to use and bulk regulations and to be designated as follows:”
  • SetbacksSpecified

    Single-family detached dwellings in the RA Zone.

    • Rear yard is 25% of lot depth and not less than 35 feet.
    • Side yard is 10% of lot width on both sides and not less than 5 feet.
    • Corner-lot side yard follows 50% of the required front-yard setback on the side street and is not less than 10 feet.

    front setback minimum: >= 25 feet (maximum 35 feet) · rear setback: 25% of lot depth, minimum 35 feet · side setback: 10% of lot width, minimum 5 feet (corner lot minimum 10 feet)

    “Front: 25 feet minimum and 35 feet maximum. Rear: 25% of the lot depth, except that in no event will a rear yard be less than 35 feet. Side: 10% of the lot width on both sides, except that in no case will a side yard be less than five feet.”
    One more reviewed finding on this topic
    • Specified — Single-family detached dwellings in the RA1 Zone.
      “Front: 40 feet minimum. Rear: 25% of the lot depth, except that in no case will a rear yard be less than 35 feet. Side: 10% of the lot width on both sides, except that in no case will a side yard be less than five feet.”
  • Lot coverageSpecified

    Single-family detached dwellings in the RA Zone.

    maximum impervious lot coverage: <= 60 percent

    “Impervious lot coverage: Impervious surfaces shall cover no more than 60% of the lot.”
    One more reviewed finding on this topic
  • Building heightSpecified

    Single-family detached dwellings in the RA Zone.

    maximum height: <= 30 feet (2 1/2 stories maximum)

    “Height: 2 1/2 stories and 30 feet maximum.”
    One more reviewed finding on this topic
  • Permit processPartial

    Construction-permit processing for work inside Garwood borough.

    • Garwood has a shared service with Cranford for construction-code services.
    • All building permits are handled through the Cranford Building Department.
    • The reviewed source did not provide all forms, review stages, fees, or inspection scheduling details.
    “The Borough of Garwood has a shared service with the Township of Cranford for Construction Code Services. All building permits are handled through the building department in Cranford.”

Rules another office applies inside Borough of Garwood

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

  • Owner-builder exemptionAvailable (with conditions)

    A person constructing a new home for that person's own personal use in Garwood borough.

    • The state source identifies an exception to new-home-builder registration for a person constructing a new home for personal use.
    • This is a builder-registration exception and does not establish exemption from construction permits, inspections, zoning, or other requirements.
    “The only exception is a person who constructs a new home for his or her own personal use.”
  • Building code adoptedAdopted

    Construction inside Garwood borough under New Jersey's Uniform Construction Code.

    • New Jersey's UCC contains administrative and enforcement rules and building, electrical, fire-protection, and plumbing subcodes.
    • Garwood uses a shared construction-code service with Cranford for local administration.
    “All construction work performed in the State is regulated by the Uniform Construction Code (UCC), which contains rules relating to the administration and enforcement of the code as well as four basic technical subcodes: building, electrical, fire protection, and plumbing.”
  • InspectionsRequired

    Permitted construction inside Garwood borough, administered locally through the Garwood-Cranford shared service.

    • Inspections occur periodically during construction and at specified stages; inspectors need not be continuously present.
    • Garwood shares building-inspection services with Cranford.
    “During construction, the code official or inspector conducts regular inspections to ensure that the work performed complies with the UCC.”
  • Certificate of occupancyRequired

    New or permitted construction inside Garwood borough after required final inspections.

    • The construction official issues the certificate after the project passes final inspections.
    • Garwood's local construction-code services are shared with Cranford.
    “Once a construction project passes final inspections, the builder certifies that the project complies with the UCC and the construction official issues a Certificate of Occupancy.”

Still unanswered

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

  • Building permit — Construction inside Garwood borough.
  • Minimum dwelling size — Single-family residential districts inside Garwood borough.
  • Living in an RV — RV occupancy or placement on land inside Garwood borough.
  • Camping on your land — Temporary camping on private land inside Garwood borough.
  • Tiny homes — Tiny-home occupancy inside Garwood borough.
9 more unanswered
  • Manufactured homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • 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 Borough of Garwood publishes no rule on the point, not that none exists. Union County’s page lists the county offices to call.

Off-grid gear

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

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