Bolthole Index

Hancock County, Maine

Zoning, building permits and septic rules in Town of Penobscot, Maine

Town of Penobscot is a town in Hancock County, Maine. Septic permits inside Town of Penobscot come from the county and state together. 13 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Hancock County page.

Answers from the rulebook for Town of Penobscot

Town of Penobscot’s own rules

  • Minimum lot sizeSpecified

    Residential lots in Penobscot town under the residential lot standards (section 6.h). The ordinance names no separate single-family or agricultural district; the standard is stated for residential lots generally.

    • Lots in existence on June 28, 1974 are treated as conforming to lot size (section 6.h, item 5, adopted 3/5/79).
    • Lots abutting a water body also need 150 feet of shore frontage (see separate claim).
    • Subdivision lots also must be at least 60,000 square feet (section 10, item 12).
    • The board of appeals may grant a variance for lot area only on undue hardship grounds.

    minimum lot area: >= 60000 square feet (lots in existence on June 28, 1974 (section 6.h item 5))

    “3. Each lot shall contain at least 60,000 square feet.”
  • SetbacksSpecified

    All structures in any zoning district in Penobscot town (side and rear lot lines)

    • Front setbacks are not stated in this paragraph; the front yard is defined as the area between the front lot line and the nearest part of the principal building.
    • The board of appeals may grant variances for setbacks on undue hardship grounds.

    side and rear lot line setback: >= 20 feet

    “There shall be a 20 foot setback on the side lot lines and rear lot lines of all structures in any District.”
    One more reviewed finding on this topic
  • Lot coverageSpecified

    All lots in Penobscot town under the residential lot standards (section 6.h)

    • The board of appeals may authorize a variance for lot coverage by structures, as stated in the appeals section.

    maximum structure coverage of lot: <= 20 percent (variance by board of appeals)

    “4. Structures shall not cover more than 20% of any lot.”
  • Living in an RVLimited

    Camper trailers (recreational vehicles used as living quarters) in Penobscot town

    • Camper trailers may be allowed on private lots that are not subject to subdivision rules and regulations.
    • Camper trailers in a subdivision or the shoreland district are governed by the ordinance's camper trailer section and subdivision plan approval.
    “9.2 Camper trailers may be allowed on private lots not subject to sub-division rules and regulations.”
  • Camping on your landLimited

    Campgrounds and camping areas in Penobscot town that charge a fee for overnight temporary camping

    • Campgrounds must conform to the minimum requirements of state licensing procedures.
    • Camping areas must be set back at least 75 feet from the normal high water mark of any pond, river, or saltwater body.
    • Campground definition: any premises established for overnight use for the purpose of temporary camping, and for which a fee is charged.

    minimum land per campsite: >= 5000 square feet (excludes roads and driveways)

    “Camping areas shall contain a minimum of 5,000 square feet of suitable land, not including roads and driveways, for each site.”
  • Manufactured homesLimited

    Mobile home parks in Penobscot town

    • Parks must meet all requirements for a residential subdivision and conform to applicable state laws and local ordinance.
    • Each individual park lot must be at least 50 feet by 100 feet; no mobile home may be placed within 30 feet of another.
    • Mobile homes in a park must connect to a public water system, and to sanitary sewer, if available, at no expense to the municipality.

    minimum mobile home park area: >= 3 acres

    “8.5 The minimum area of land within the park shall be 3 acres.”
    2 more reviewed findings on this topic
  • Who permits septicMixed (with conditions)

    Subsurface sewage disposal inside Penobscot town. Standard systems follow the Maine state plumbing code; other systems need Maine Department of Health and Welfare approval and a Penobscot planning board permit.

    • Subsurface systems must meet the state plumbing code and its setbacks from water bodies (100 feet; 300 feet where daily flow exceeds 2,000 gallons).
    • Setbacks from shorelines for subsurface disposal cannot be reduced by variance.
    • The state agency's current name and the current state rules were not verified; the ordinance uses the older name Maine Department of Health and Welfare.

    minimum setback from normal high water mark: >= 100 feet (300 feet where daily sewage flow exceeds 2,000 gallons)

    “Other systems of sanitary waste disposal may be permitted after approval by the Maine Department of Health and Welfare, and after a permit has been issued by the Planning Board”
  • Off-grid sanitationLimited

    Privies in Penobscot town in areas not served by community sewer facilities

    • No plumbing of any kind may be connected to or discharged into the privy pit.
    • The privy must be located at least two feet above bedrock and the seasonal high ground water table, or use a watertight vault.
    • Privies are not permitted on recent flood plain soils.
    “Privies may be permitted in areas not served by community sewer facilities under the following conditions”
  • Driveway accessLimited

    Lots in subdivisions in Penobscot town

    • Lots must abut a public road or have adequate right-of-way access at grades not exceeding 12 percent to the public road.
    • Road specifications are set by the town selectmen or town meeting.

    maximum access grade: <= 12 percent

    “Each lot must abut on the public road or have adequate right of way access at grades not exceeding 12% to the public road.”
  • Permit processPartial

    Land use permits in Penobscot town, issued by the code enforcement officer or the planning board depending on the use

    • The land use table in section 5 is garbled in the PDF text; the permit type for each use was not read cell by cell.
    • Some uses are subject to specific land use standards in section 6.
    “Permits are issued by either the Planning Board or Code Enforcement officer as required by any of Penobscot’s Town Ordinances.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of Penobscot or Hancock County directly.

  • Building permit — Building permits for new construction in Penobscot town
  • Owner-builder exemption — Owner-builder exemption from building permits in Penobscot town
  • Building code adopted — Building code adoption in Penobscot town
  • Inspections — Building inspections in Penobscot town
  • Certificate of occupancy — Certificates of occupancy in Penobscot town
10 more unanswered
  • Minimum dwelling size
  • Building height
  • Tiny homes
  • Accessory dwellings
  • Septic inspection
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • 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 Town of Penobscot publishes no rule on the point, not that none exists. Hancock County’s page lists the county offices to call.

Off-grid gear

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

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