Bolthole Index

Weston County, Wyoming

Zoning, building permits and septic rules in Town of Upton, Wyoming

Town of Upton is a town in Weston County, Wyoming. Septic permits inside Town of Upton come from Town of Upton. 14 rules below are quoted from official sources and independently re-checked, most recently on November 12, 2026. Rules for unincorporated land are on the Weston County page.

Answers from the rulebook for Town of Upton

Town of Upton’s own rules

  • Building permitRequired

    Construction of buildings, sheds, other structures and setting mobile homes inside Upton town

    • Starting without a permit adds $50.00 to the permit cost
    • Persons failing to obtain a required permit are denied connection to town utilities until the permit is obtained

    penalty for work without permit: 50 USD

    “Any construction in addition to the placement of a mobile home shall require a building permit.”
  • Building code adoptedAdopted (with conditions)

    Buildings and structures within Upton town

    • 1997 Uniform Building Code (ICBO) adopted as the town building code
    • Modified by 15.04.020: UBC sections 104, 105, 106.3.2-106.4.2, 107, 108 and 109 do not apply; town permit fees and setbacks replace UBC provisions

    adopted code edition: Uniform Building Code 1997 (modified by 15.04.020)

    “The Uniform Building Code, 1997 Edition, including all of its indices and appendices, as published by the International Conference of Building Officials, is hereby adopted”
  • Certificate of occupancyNot required

    UBC Section 109 certificate of occupancy inside Upton town

    • Only states the UBC certificate-of-occupancy section does not apply; no separate town certificate located
    “Section 109—Certificate of Occupancy: shall not apply”
  • Minimum lot sizeSpecified

    Residential lots created under the town subdivision regulations inside Upton town

    • From the subdivision title (Title 16), not a zoning district table; district-specific minimums not located

    minimum residential lot dimensions: >= 75 ft x 100 ft feet

    “The minimum dimensions for all residential lots shall not be less than 75 feet by 100 feet.”
  • Living in an RVLimited

    Travel trailers, tent trailers and truck campers on private premises inside Upton town

    • Sleeping use only for a short duration, defined as not exceeding ten days
    • Parks accommodating such vehicles short-term must meet state standards

    short duration: <= 10 days

    “A mobile home, tent trailer, travel trailer or truck camper parked on private premises may be used for sleeping purposes only for a short duration.”
  • Camping on your landLimited

    Camping inside Upton town (private premises and city park)

    • Private premises: sleeping in trailers or campers only up to ten days
    • City park: overnight camping requires a town council permit and fee set by resolution; council may deny for any reason

    short duration: <= 10 days

    “Overnight camping shall not be allowed in the city park.”
  • Manufactured homesLimited

    Mobile homes inside Upton town

    • Allowed only in licensed mobile home parks or on individual lots under the single mobile home development ordinance with a town permit
    • Must connect to town water and sewer
    “It is unlawful for any person to park any mobile home within the corporate limits except as provided in this chapter or by the single mobile home development ordinance.”
  • Who permits septicLocal (with conditions)

    Onsite sewage systems inside Upton town

    • Town ordinance bans septic tanks, privies and cesspools; homes are served by town sewer
    • Exception: self-contained portable toilets used temporarily not exceeding 48 hours
    “It shall be unlawful for any person to keep, maintain, or use an outdoor toilet, privy, cesspool, privy vault or septic tank.”
  • Off-grid sanitationProhibited

    Outdoor toilets, privies, cesspools and septic tanks inside Upton town

    • Exception: self-contained portable toilets used on a temporary basis not exceeding 48 hours
    “It shall be unlawful for any person to keep, maintain, or use an outdoor toilet, privy, cesspool, privy vault or septic tank.”
  • Mandatory utility hookupWater and sewer (with conditions)

    Mobile homes on individual lots and in mobile home parks inside Upton town

    • Hookup fees apply
    • Connections per existing single-family residential standards
    • General rule for site-built homes not located in the provided sections
    “Mobile homes on individual lots shall connect to town sewer and water systems and shall pay the required hookup fees.”
  • Subdividing landRegulated (with conditions)

    Subdivisions inside Upton town

    • Final plat approval by town council
    • Subdivider pays for streets, drainage, water mains, sanitary sewer and other improvements
    • Subdivider must extend water/sewer lines if not adjacent, as approved by town council, town engineer and DEQ
    “Prior to acceptance and approval of the final plat by the town council, the subdivider shall agree to make, at the cost of the subdivider, the following improvement:”
  • Driveway accessLimited

    Driveways on individual mobile home lots inside Upton town

    • Material standard only; no general driveway permit located
    “All driveways shall be overlaid with an acceptable material.”
  • Permit feesPublished

    Building and mobile home permit fees inside Upton town

    • Fee schedule in 15.04.020.A.1, amended by 2007-2009 ordinances; $50.00 surcharge for starting without a permit

    mobile home parking permit, singlewide: 50 USD · mobile home parking permit, doublewide: 75 USD · mobile home parking permit, triple wide: 100 USD · building permit 0-500 sq ft: $10.00 + 6 cents per sq ft (larger tiers in 15.04.020)

    “Any person or entity that starts construction of a building, shed or other structure or that sets a mobile home without obtaining a proper permit shall be assessed an additional $50.00 added to the cost of the permit.”
  • Permit processPartial

    Mobile home placement permit applications inside Upton town

    • Application requires owner and applicant names, legal description, a sketch of stand, accessory structures and utility lines
    • General building permit process not located
    “All applications for a permit shall contain the following:”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemptions inside Upton town
  • Inspections — Building inspections inside Upton town
  • Local zoning — Zoning within Upton town limits
  • Zoning districts — Zoning districts inside Upton town
  • Minimum dwelling size — Minimum dwelling size inside Upton town
11 more unanswered
  • Setbacks
  • Lot coverage
  • Building height
  • Tiny homes
  • Accessory dwellings
  • Septic permit
  • Septic inspection
  • Well permit
  • Agricultural exemption
  • Building in a floodplain
  • Short-term rentals

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 Upton publishes no rule on the point, not that none exists. Weston County’s page lists the county offices to call.

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