Bolthole Index

Natrona County, Wyoming

Zoning, building permits and septic rules in Casper, Wyoming

Casper is a city in Natrona County, Wyoming. Casper adopts its own zoning, so inside its limits Casper’s rules apply, not the county’s. 3 rules below are quoted from official sources and independently re-checked, most recently on October 22, 2026. Rules for unincorporated land are on the Natrona County page.

Answers from the rulebook for Casper

Casper’s own rules

  • Local zoningPresent (with conditions)

    Land inside Casper city limits: Casper city administers its own zoning ordinance (Title 17 Zoning of the Casper Municipal Code)

    • Zoning district chapters are listed on the city's zoning regulations page, including Chapter 17.28 R-1 Residential Estate and Chapter 17.32 R-2 One Unit Residential.
    • Full district text was not opened in this run; see unknown dimensional and occupancy claims.
    “chapter 17.28 - r-1 residential estate document seq 0.00 chapter 17.32 - r-2 one unit residential document seq 0.00”
  • Zoning districtsPublished

    Zoning district chapters of Casper Title 17 Zoning, inside Casper city limits

    • The city's zoning regulations page lists 21 district and related chapters, including Chapter 17.24 AG Urban Agriculture through Chapter 17.28 R-1 Residential Estate and Chapter 17.32 R-2 One Unit Residential.
    • District text was not verified; only the list of chapters was verified.
    “chapter 17.24 - ag urban agriculture document seq 0.00 chapter 17.28 - r-1 residential estate document seq 0.00 chapter 17.32 - r-2 one unit residential document seq 0.00”
  • Subdividing landRegulated (with conditions)

    Land divisions inside Casper city limits

    • Title 16 (Subdivisions) is part of the Casper Municipal Code; its requirements were not read.
    “expand title 16 - subdivisions* title 16 - subdivisions* expand title 17 - zoning* title 17 - zoning*”

Still unanswered

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

  • Building permit — New construction and remodels inside Casper city limits
  • Owner-builder exemption — Owner-builder construction inside Casper city limits
  • Building code adopted — Buildings inside Casper city limits
  • Inspections — Building inspections inside Casper city limits
  • Certificate of occupancy — Certificate of occupancy for new dwellings inside Casper city limits
22 more unanswered
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • 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 Casper publishes no rule on the point, not that none exists. Natrona County’s page lists the county offices to call.

Off-grid gear

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

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