Bolthole Index

Unicoi County, Tennessee

Zoning, building permits and septic rules in Town of Erwin, Tennessee

Town of Erwin is a town in Unicoi County, Tennessee. Town of Erwin adopts its own zoning, so inside its limits Town of Erwin’s rules apply, not the county’s. 4 rules below are quoted from official sources and independently re-checked, most recently on November 12, 2026. Rules for unincorporated land are on the Unicoi County page.

Answers from the rulebook for Town of Erwin

Town of Erwin’s own rules

  • Building code adoptedAdopted

    Buildings and structures inside Erwin town

    • 2018 IBC adopted without amendment except inserting 'town of erwin' in section 101.1; separate chapters adopt plumbing, fuel gas, residential, mechanical, energy and other codes.
    • Violation fine of not more than $50 per day.

    IBC edition: 2018

    “(ibc), 2018 edition including the appendix chapters f and g and icc a117.1-2009, as published without amendment, by the international code council, be and is hereby adopted as the building code of the town of erwin”
  • Local zoningPresent

    Land inside Erwin town limits, Unicoi County, TN

    • Zoning text is Ord. #383 and amendments, published as a separate document on record with the town recorder; its text was not reviewed.
    • Town also has a municipal planning commission (§14-101).
    “land use within the town of erwin shall be governed by ord. #383, titled "zoning ordinance, erwin, tennessee," and any amendments thereto.”
  • Manufactured homesLimited

    Mobile home parks inside Erwin town

    • Mobile home parks must be a permitted use in the zoning district and need a permit from the building inspector.
    • Park is a minimum of two acres with two or more mobile homes; plan approval by planning commission required.
    • District rules for individual manufactured homes are in Ord. #383, not reviewed.
    “unless mobile home parks are a permitted use within the district and a valid permit is issued by the building inspector in the name of such person”
  • Subdividing landRegulated (with conditions)

    Land subdivision inside Erwin town

    • Subdivision regulations are a separate document on record with the town recorder; their content was not reviewed.
    “the town's subdivision regulations are also published as a separate document which is of record in the recorder's office.”

Still unanswered

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

  • Building permit — Construction inside Erwin town
  • Owner-builder exemption — Owner-builders inside Erwin town
  • Inspections — Construction inside Erwin town
  • Certificate of occupancy — New dwellings inside Erwin town
  • Zoning districts — Inside Erwin town
21 more unanswered
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny 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 Town of Erwin publishes no rule on the point, not that none exists. Unicoi County’s page lists the county offices to call.

Off-grid gear

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

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