Bolthole Index

Broadwater County, Montana

Zoning, building permits and septic rules in Townsend, Montana

Townsend is a city in Broadwater County, Montana. Townsend adopts its own zoning, so inside its limits Townsend’s rules apply, not the county’s. 6 rules below are quoted from official sources and independently re-checked, most recently on October 28, 2026. Rules for unincorporated land are on the Broadwater County page.

Answers from the rulebook for Townsend

Townsend’s own rules

  • Building code adoptedAdopted

    Building-code jurisdiction inside Townsend city limits.

    • The Montana certified-jurisdiction listing identifies Townsend as a city-limits building-code jurisdiction.
    • The city page states that the City has adopted Building Codes.

    certified code categories: B, SP

    “Townsend | B, SP | James Schauber | 431-8319 | City Limits”
    One more reviewed finding on this topic
  • Local zoningPresent (with conditions)

    Land inside Townsend city limits subject to the city's zoning ordinances.

    • The cited record concerns an airport-zoning permit application jointly considered with Broadwater County.
    “Angie stated that she recommends the City’s zoning administrator approve the application with the County since they know the city’s zoning ordinances.”
    One more reviewed finding on this topic
    • Present — Land inside Townsend city limits.
      “It must have easy access to frequently asked questions (FAQs), ordinances (with direct links to specific sections), zoning information, building permit applications (PDF and online), pet licensing, and city services (e.g., pool hours, garbage pickup schedules, city limits maps, water/sewer lines).”
  • Living in an RVLimited

    Camper or trailer parking at Townsend city parks; this does not establish rules for private residential parcels.

    • Campers may park around Heritage Park for 48 hours.
    • A camper or trailer may not park at a city park longer than 72 hours in a two-week period.

    Heritage Park parking duration: <= 48 hours (campers around Heritage Park) · city-park camper/trailer duration: <= 72 hours per two-week period (city parks)

    “There is an ordinance that campers are allowed to park around Heritage Park for 48 hours. And then there is an ordinance that stated you cannot park a camper/trailer at a city park for longer than 72 hours in a two-week period.”
  • Subdividing landRegulated (with conditions)

    Subdivision proposals inside Townsend city limits.

    • Administrative minor subdivision review requires five lots or fewer, water and sewer service, and existing legal and physical access; it cannot include variances.
    • Final plats remain subject to the final-plat process and council approval.

    administrative minor subdivision maximum lots: <= 5 lots (must meet the remaining regulatory criteria)

    “It does have to meet certain criteria to qualify and has to meet all the zoning requirements and subdivision regulations.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Townsend or Broadwater County directly.

  • Owner-builder exemption — Owner-builders constructing inside Townsend city limits.
  • Inspections — Building inspections inside Townsend city limits.
  • Certificate of occupancy — Certificates of occupancy for buildings inside Townsend city limits.
  • Zoning districts — Zoning districts inside Townsend city limits.
  • Minimum dwelling size — Minimum dwelling size inside Townsend city limits.
20 more unanswered
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • 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 Townsend publishes no rule on the point, not that none exists. Broadwater County’s page lists the county offices to call.

Off-grid gear

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

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