Washakie County, WY: No Building Permit, No Zoning

Q: Does Washakie County have zoning, and do Worland and Ten Sleep?

Washakie County reports no countywide zoning. The county's subdivision regulations are separate from zoning, and the county does not administer city zoning. Zoning does exist inside Worland, which maintains zoning districts and use classifications, and inside Ten Sleep, which publishes a Title 9 Development Code. Those rules stop at town limits. No county zoning rule sets minimum dwelling size or building height or restricts accessory dwellings or tiny-home occupancy in unincorporated Washakie County. Covered land divisions still require a subdivision permit unless exempt. Sketch-plan and preliminary-plat materials generally must arrive at least 5 business days before a regular meeting; the Planning Commission acts on a complete sketch plan within 45 days. Sketch-plan review costs $50, and preliminary-plat review costs $100 except for a simple subdivision. The final plat is the permit application and requires full payment of accrued county notification fees, with no fixed notification amount stated.

Unincorporated Washakie County, Wyoming does not require a county building permit for an ordinary home¹. The county has no countywide zoning; Worland and Ten Sleep set zoning inside their own limits²³⁴. The Washakie County Planner authorizes qualifying domestic septic systems throughout the county, and Road & Bridge handles access applications for new county-road driveways⁵⁶.

At a glance

Building permit: Not required by Washakie County for an ordinary home in an unincorporated area¹
Zoning: No countywide zoning; Worland and Ten Sleep set zoning inside town limits²³⁴
Septic permit: Washakie County Planner authorizes qualifying domestic septic systems⁵
Subdivision permit: Covered land divisions require a county subdivision permit unless exempt⁷
Flood hazards: Subdivision plats must map floodplains; no general floodplain permit confirmed⁸
RV living: Commercial campgrounds: stays beyond 90 consecutive days need prior Planning Commission approval; RV living on your own parcel is unconfirmed⁹
Manufactured home: Mobile-home-park lots need at least 3,000 square feet and 40 feet of width¹⁰
Well: A state permit is required before constructing a well for beneficial use¹¹
County-road driveway: Apply for county access approval before construction⁶

Who to call

Planning & zoning

Washakie County Planner

Subdivision and development review and small wastewater application materials

307-347-6778

1001 Big Horn Avenue, Worland, WY 82401

Roads & driveways

Washakie County Road & Bridge

County-road access permit applications

307-347-4361

601 15 Mile Road, Worland, WY 82401

Contact details are copied from each office’s official page and were checked against it on October 16, 2026.

Off-grid gear

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

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Do you need a building permit in Washakie County, Wyoming?

For an ordinary home in unincorporated Washakie County, the county does not require a building permit or contractor license¹. Wyoming State Fire Marshal plan review covers specified projects, including certain public buildings, assembly uses and fuel facilities¹². Covered buildings undergo inspection for conformity with approved plans; newly constructed buildings in that regime require occupancy approval, subject to statutory exclusions and delegated local authority¹³¹⁴. Wyoming has adopted statewide building, fire, fuel-gas, mechanical and existing-building codes, but applicability depends on the structure and use¹⁵. An owner may act as general contractor on a primary residence, subject to electrical licensing and applicable local or state approvals¹⁶.

Who issues building permits in Washakie County, and who handles septic and driveways?

For planning and septic questions in unincorporated Washakie County, contact the Washakie County Planner at 1001 Big Horn Avenue, Worland, WY 82401, or 307-347-6778¹⁷⁵. The Planner publishes the subdivision regulations and small-wastewater application materials¹⁷¹⁸¹⁹. For a county-road driveway access application, contact Washakie County Road & Bridge at 601 15 Mile Road, Worland, WY 82401, or 307-347-4361²⁰. We could not confirm who issues building permits inside Worland or Ten Sleep; ask each town hall. Qualifying domestic septic systems in both stay under the county Planner's authority⁵.

Does Washakie County have zoning, and do Worland and Ten Sleep?

Washakie County reports no countywide zoning². The county's subdivision regulations are separate from zoning, and the county does not administer city zoning²¹. Zoning does exist inside Worland, which maintains zoning districts and use classifications, and inside Ten Sleep, which publishes a Title 9 Development Code²²³⁴. Those rules stop at town limits. No county zoning rule sets minimum dwelling size or building height or restricts accessory dwellings or tiny-home occupancy in unincorporated Washakie County²³. Covered land divisions still require a subdivision permit unless exempt⁷. Sketch-plan and preliminary-plat materials generally must arrive at least 5 business days before a regular meeting; the Planning Commission acts on a complete sketch plan within 45 days²⁴. Sketch-plan review costs $50, and preliminary-plat review costs $100 except for a simple subdivision²⁵. The final plat is the permit application and requires full payment of accrued county notification fees, with no fixed notification amount stated²⁴²⁶.

Who issues septic permits in Washakie County, and how do they work?

The Washakie County Planning Office authorizes domestic septic-tank and drainfield systems with flows below 2,000 gallons per day under delegated state authority⁵. Submit the application and wait for design approval before construction; a new residential septic permit costs $100 and renewal costs $50¹⁹. Site suitability is evaluated through photographs or a Planning Office inspection; schedule a requested visit at least 48 hours before excavation²⁷. For a minor subdivision with at least 1.5 acres of developable land per lot, an exception concerns specified water-and-sewage reports and DEQ review, not individual septic construction authorization; the Commission may still require DEQ review, and at least one percolation test per two lots is required²⁸¹⁹. Only 27.8% of mapped soils lack severe conventional drain-field limits, so evaluate the parcel early²⁹. Systems outside county authority may require Wyoming DEQ permits⁵.

Can you live in an RV or tiny home on your land in Washakie County?

We could not confirm a rule resolving full-time RV occupancy on a standalone parcel in unincorporated Washakie County; ask the County Planner about the proposed use and wastewater arrangement¹⁷. The rules we found cover commercial campgrounds open to the public, which need safe sewage, water supply and public-road access and go through the county subdivision process³⁰. In such a campground, a tenant or camping unit staying beyond 90 consecutive days needs prior Planning Commission notification and approval, and a campground that breaks the limit may be required to apply as a mobile-home-park subdivision⁹. Tiny-home occupancy has no county zoning rule to run into on unincorporated land, though septic and driveway rules still apply²³. In a mobile-home-park subdivision, each lot must have at least 3,000 square feet, be at least 40 feet wide and hold only one mobile home¹⁰³¹. Front and rear yards must be at least 15 feet and side yards at least 10 feet; the home and accessories may cover no more than 50 percent of the lot³²³³.

What are the steps to build a home in Washakie County, Wyoming?

Confirm jurisdiction: unincorporated Washakie County has no county zoning districts, while Worland sets city zoning; qualifying domestic septic systems remain with the county Planner³⁴³⁵.

If dividing land, start with the County Planner and sketch-plan process¹⁸²⁴.

For a subdivision proposing water or sewer service, document provider capacity and complete the required review³⁵.

Obtain county authorization for a qualifying domestic septic system before construction¹⁹.

Obtain a State Engineer permit before constructing a groundwater well for beneficial use¹¹.

Apply before constructing county-road access; subdivision lots also need public-road and fire access⁶³⁶.

Ask whether State Fire Marshal inspection and occupancy approval apply to the proposed building¹³¹⁴.

What should you check before buying land in Washakie County?

For a Washakie County subdivision lot, check that the final plat references recorded legal documents providing access to a public road; the county may require engineered road plans³⁷. Each lot also needs fire access, and dead-end fire-access roads longer than 750 feet require local fire-chief approval³⁶. A new county-road driveway requires an application and preliminary and final inspections⁶. Subdivision plats must identify flood hazards: affected lots may be developed only if hazards are eliminated or mitigated, and unmitigable areas must be placed in lots where development is prohibited³⁸. A preliminary plat must also map floodplains and unsuitable soil within or next to the subdivision⁸. That review applies to subdivisions only; we could not confirm a separate countywide floodplain-development permit, so ask the County Planner⁸¹⁷. A beneficial-use well requires State Engineer approval before construction; monitoring wells used only for water-level measurement or sampling are exempt¹¹³⁹. Vacating an approved final plat costs $150 plus county notice costs⁴⁰.

Watch-outs

No ordinary county home building permit does not remove State Fire Marshal review and inspection for specified projects¹¹²¹³.
Washakie County's 90-day campground limit applies to commercial campgrounds and does not resolve full-time RV occupancy on a standalone parcel; ask the County Planner⁹¹⁷.
Subdivision utility documentation does not establish a general connection mandate outside the subdivision process³⁵.
Zoning exists inside Worland and Ten Sleep even though the county has none, so check town rules before buying inside either town's limits²³⁴.

Sources

Written October 16, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Compared with neighboring counties

Rule	Washakie County	Hot Springs County	Johnson County	Big Horn County	Fremont County	Sheridan County	Natrona County
Building permit	Not required	Not required	Not required	Required	Not required	Required	Required
County zoning	No	Yes	No	No	No	Yes	Yes
Septic permits	County Planner	County Planning Office	County Planning Dept.	County Land Planning Dept.	County Planning Dept.	County Public Works Dept.	Casper-Natrona County Health Dept.

How Washakie County scores

Seclusion87100% ev.

Self-Sufficiency1899% ev.

Admin Boringness8790% ev.

Durability39100% ev.

Property Autonomy74100% ev.

Carry Cost89100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$280kTypical home

0.7%Property tax

$1,623Land / acre

12.5"Annual rain

19.3% of yrsSevere drought

6.2 / yr (+5.7)Mid-century 100°F days

24.9 daysMid-century dry spell

0.87" (+8.3%)Mid-century 1-day rain

1.2×Wildfire change factor

100%Forward climate coverage

$1,564Home insurance / yr

0.9% / yrInsurance growth

0.2%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

595Radius comparison (15 mi)

3.4People / sq mi

66.9%Federal land

57.2%Land at 15% slope or less

27.8%Soils rated "not limited" for septic (strict USDA rating)

219,545 acWorkable land screen

7%Wooded land

24.1 tonsBiomass / forest ac

44.8°FAvg temp

Answers from the rulebook for Washakie County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Washakie County rules

County-wide zoningAbsent
County zoning regulations in Washakie County, including the countywide survey classification; the survey does not distinguish incorporated municipal zoning from unincorporated county areas in this row.
- The WCCA survey was updated September 9, 2023.
- The county separately publishes subdivision and development regulations effective January 1, 2024; those regulations are not treated as zoning based solely on the planner-page notice.
“County Zoning Regulations [...] Washakie No N/A N/A N/A No N/A”
County Zoning, Licensing and Permitting ↗Re-checked Sep 10, 2026
Local zoningVaries (with conditions)
Aggregate local zoning in Washakie County, combining the county's reported absence of county zoning with zoning administered by incorporated municipalities.
- Washakie County reports no county zoning regulations in the cited 2023 survey.
- The City of Worland, an incorporated municipality within Washakie County, maintains zoning districts and use classifications.
- The county aggregate does not mean Washakie County administers the City of Worland zoning ordinance.
- Other incorporated municipalities in Washakie County were not independently resolved in this research.
“24-9-2: Table – Zoning District Regulations Effective 08/17/21 – Resolution 2021-6 Page 1 of 17 P = Uses permitted by Right S = Uses permitted by Special Exemption ZONING DISTRICTS”
County Zoning, Licensing and Permitting ↗Re-checked Oct 6, 2026
Zoning districtsNot published
County zoning districts in Washakie County; incorporated municipalities may have separate municipal rules.
- The official statewide survey reports that Washakie County has no county zoning regulations and lists zoning districts as N/A.
- This claim addresses county zoning and does not negate separate municipal authority within incorporated places.
“County Zoning, Licensing and Permitting -- Prepared by the Wyoming County Commissioners Association -- Updated September 9, 2023 [...] Washakie No N/A N/A N/A No N/A”
County Zoning, Licensing and Permitting ↗Re-checked Sep 10, 2026
Minimum dwelling size · by state lawNone
Unincorporated Washakie County: no county rule sets this, because Washakie County's own reviewed answer confirms it has no county-wide zoning ordinance.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The WCCA survey was updated September 9, 2023.
- The county separately publishes subdivision and development regulations effective January 1, 2024; those regulations are not treated as zoning based solely on the planner-page notice.
“County Zoning Regulations [...] Washakie No N/A N/A N/A No N/A”
County Zoning, Licensing and Permitting ↗Re-checked Sep 10, 2026
Minimum lot sizeSpecified
Each mobile-home lot in a mobile-home-park subdivision governed by the Washakie County Subdivision and Development Regulations in unincorporated Washakie County.
- Mobile home parks must meet all platting requirements for regular subdivisions.
- Each lot must have potable water, electricity, and sewer available for connection; water and sewer systems must meet paragraph 3.07 requirements.
- The regulations are effective January 1, 2024.
- The subdivision-permit provisions apply to unincorporated land; divisions within incorporated cities or towns are exempt from the county subdivision regulations.
- The rule requires one mobile home per mobile-home lot and the stated road-access requirements.
minimum mobile home lot area: >= 3000 square feet (Exclusive of dedicated sixty-foot-wide street right-of-way or private-drive easements.) · minimum mobile home lot width: >= 40 feet
“Each mobile home lot shall provide a minimum land area of three thousand (3000) square feet, exclusive of dedicated sixty-foot (60’) wide street right-of-way or private drive easements. Each lot shall be no less than forty (40) feet in width.”
Washakie County Subdivision and Development Regulations ↗Re-checked Sep 29, 2026
SetbacksSpecified
Mobile home use in a mobile home park subdivision in unincorporated Washakie County.
- Mobile home parks must meet all platting requirements for regular subdivisions.
- The requirement applies within the county subdivision-permit jurisdiction for unincorporated land.
- Lands located within incorporated cities or towns are exempt from the county subdivision-permit regulations.
- Water and sewer systems must meet the requirements of paragraph 3.07.
- The regulations are effective January 1, 2024.
minimum front yard: >= 15 feet · minimum rear yard: >= 15 feet · minimum side yard: >= 10 feet
“Mobile home use shall provide for minimum front and rear yards of fifteen (15) feet and minimum side yards of ten (10) feet.”
Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
Lot coverageSpecified
Mobile homes and their accessories on a mobile-home lot in a mobile-home-park subdivision governed by the Washakie County Subdivision and Development Regulations in unincorporated Washakie County.
- Mobile home parks must meet all platting requirements for regular subdivisions.
- The subdivision-permit provisions apply to unincorporated land; divisions within incorporated cities or towns are exempt from the county subdivision regulations.
- The regulations are effective January 1, 2024.
- The mobile-home park must also provide at least eight percent of its area for private recreational areas, excluding roadways, mobile-home spaces, and storage areas.
- Water, sewer, anchoring, and skirting requirements also apply.
maximum lot area occupied by mobile homes and accessories: <= 50 percent · minimum private recreational area: >= 8 percent of mobile home park area (Recreational area may not include roadway, mobile-home space, or storage areas.)
“Mobile homes and their accessories may not occupy more than 50% of the lot area. A mobile home park shall provide an amount of not less than eight (8) percent of the mobile home park area for private recreational area(s). The area allowed for recreation shall not include any area designated as a roadway, mobile home space, or storage areas.”
Washakie County Subdivision and Development Regulations ↗Re-checked Sep 29, 2026
Building height · by state lawNone
Unincorporated Washakie County: no county rule sets this, because Washakie County's own reviewed answer confirms it has no county-wide zoning ordinance.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The WCCA survey was updated September 9, 2023.
- The county separately publishes subdivision and development regulations effective January 1, 2024; those regulations are not treated as zoning based solely on the planner-page notice.
“County Zoning Regulations [...] Washakie No N/A N/A N/A No N/A”
County Zoning, Licensing and Permitting ↗Re-checked Sep 10, 2026
Living in an RVTemporary only (with conditions)
Recreational-vehicle occupancy in a private, for-profit campground open to the general public in unincorporated Washakie County.
- The campground must provide adequate and safe sewage systems, water supply systems, and access to a public road.
- Drainage, fire-protection, road, and utility requirements apply when determined applicable by the Planning Office, Planning and Zoning Commission, and/or Board of County Commissioners.
- The campground application follows the county subdivision process, including the campground sketch-plan process and any required preliminary plat.
- No tenant or camping unit may remain longer than 90 consecutive days without prior notification of and approval by the Planning Commission.
- A campground violating the 90-day rule may be required to apply for a mobile home park subdivision.
- Municipal requirements may apply based on location.
maximum stay without Planning Commission approval: <= 90 consecutive days (Prior notification of and approval by the Planning Commission permits a longer stay.)
“90 consecutive days without prior notification of and approval”
Washakie County Subdivision and Development Regulations ↗Re-checked Sep 10, 2026
One more reviewed finding on this topic
- Temporary only (with conditions) — Recreational vehicles and other camping units used for occupancy within a Washakie County campground on private land in unincorporated areas.
  “No tenant or camping unit shall remain within a campground for a period longer than 90 consecutive days without prior notification of and approval by the Planning Commission. Campgrounds in violation of this requirement may be required to apply for a mobile home park subdivision.”
  Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
Camping on your landLimited
Commercial campgrounds on private land in unincorporated Washakie County.
- The campground must provide adequate and safe sewage systems, water supply systems, and access to a public road.
- Campgrounds must comply with applicable drainage, fire-protection, road, and utility requirements.
- The campground application follows the subdivision process, with the stated campground-specific modifications.
- A tenant or camping unit may not remain longer than 90 consecutive days without prior notification of and approval by the Planning Commission.
maximum stay without prior approval: <= 90 consecutive days (Longer stay requires prior notification of and approval by the Planning Commission.)
“Campgrounds, as defined in these Regulations, on private land shall provide adequate and safe sewage systems, water supply systems, and access to a public road. Analyses of adequacy and safety shall be based on maximum occupancy of the campground.”
Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
Tiny homes · by state lawUnrestricted
Unincorporated Washakie County: no county rule sets this, because Washakie County's own reviewed answer confirms it has no county-wide zoning ordinance.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The WCCA survey was updated September 9, 2023.
- The county separately publishes subdivision and development regulations effective January 1, 2024; those regulations are not treated as zoning based solely on the planner-page notice.
“County Zoning Regulations [...] Washakie No N/A N/A N/A No N/A”
County Zoning, Licensing and Permitting ↗Re-checked Sep 10, 2026
Manufactured homesLimited
Manufactured/mobile-home occupancy in mobile home parks governed by Washakie County subdivision and development regulations.
- Mobile home parks must meet all platting requirements for regular subdivisions.
- Each mobile home lot must provide at least 3,000 square feet and be at least 40 feet wide.
- Each lot may be occupied by only one mobile home.
- Required access, parking, potable water, electricity, sewer, yards, anchoring, skirting, lot-coverage, recreation-area, and storage standards apply.
- The source defines a mobile home as a transportable structure exceeding either 8 feet in width or 32 feet in length, built on a chassis and designed for human occupancy as a residence or temporary or permanent office.
- Mobile homes established on agricultural land and used as housing for agricultural workers who are the landowner's employees are excluded from the mobile-home-park definition.
minimum mobile-home lot area: >= 3000 square feet · minimum mobile-home lot width: >= 40 feet · mobile homes per lot: 1 mobile home · minimum front and rear yards: >= 15 feet · minimum side yards: >= 10 feet · maximum lot area occupied by mobile home and accessories: <= 50 percent
“Mobile Home Parks shall meet all platting requirements for regular subdivisions. Each mobile home lot shall provide a minimum land area of three thousand (3000) square feet, exclusive of dedicated sixty-foot (60’) wide street right-of-way or private drive easements. Each lot shall be no less than forty (40) feet in width. Each mobile home lot shall be occupied by only one mobile home.”
Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
Accessory dwellings · by state lawUnrestricted
Unincorporated Washakie County: no county rule sets this, because Washakie County's own reviewed answer confirms it has no county-wide zoning ordinance.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The WCCA survey was updated September 9, 2023.
- The county separately publishes subdivision and development regulations effective January 1, 2024; those regulations are not treated as zoning based solely on the planner-page notice.
“County Zoning Regulations [...] Washakie No N/A N/A N/A No N/A”
County Zoning, Licensing and Permitting ↗Re-checked Sep 10, 2026
Who permits septicCounty
Domestic small wastewater systems using a septic tank and drainfield with flow less than 2,000 gallons per day in Washakie County.
- Washakie County authority operates pursuant to a delegation agreement with the Wyoming Department of Environmental Quality Water Quality Division.
- Other permits issued by WDEQ/WQD must be obtained from that agency.
maximum domestic flow: < 2000 gallons per day
“Washakie County reviews applications for and authorizes the construction or modification of small wastewater systems for domestic use utilizing a septic tank and drainfield with a flow of less than 2,000 gallons pursuant to a delegation agreement between the Wyoming Department of Environmental Quality/Water Quality Division and Washakie County.”
Washakie County SWTF Application ↗Re-checked Sep 26, 2026
Septic permitRequired
Construction or modification of a domestic small wastewater system using a septic tank and drainfield in Washakie County.
- A completed application and required attachments must be submitted to the Washakie County Planning Office.
- Construction authorization is issued only after the design is approved.
- Systems outside the county-delegated domestic small-wastewater scope may require WDEQ/WQD permits.
- Residential septic permit fee is $100 for a new permit and $50 for renewal.
residential septic permit fee: 100 USD (new permit) · residential septic permit fee: 50 USD (renewal)
“If your design is approved, the Washakie County Planning Department will authorize you to construct an on-site treatment system according to the application you submitted. [...] Residential Septic Permit (new) $100.00 Residential Septic Permit (renewal) $ 50.00”
Washakie County SWTF Application ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Limited — County review and application requirements for small wastewater treatment facilities and on-lot sewage systems associated with subdivisions in unincorporated Washakie County.
  “Minor subdivisions proposing to use on-lot sewage system where no individual lot contains less than one and one-half (1.5) acres of developable land are exempt from paragraphs 3.07 (b) and (c) above unless, due to concern for public safety and welfare, the Planning Commission determines a DEQ review is necessary. [...] The subdivider shall instead provide the results of a minimum of one percolation test, taken in an appropriate place, per every two lots as part of the preliminary plat review.”
  Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
Septic inspectionRequired
Site-suitability review for approval of a domestic small wastewater system application in Washakie County.
- Color photographs of the proposed drainfield site and excavation may be submitted, or the Washakie County Planning Office may inspect the site, to determine groundwater and impermeable-layer depths.
- A requested site visit must be scheduled at least 48 hours before excavation.
- The application form authorizes a county representative to enter the proposed facility site as needed for inspection.
“Color photographs of the proposed drainfield site and the excavation to determine groundwater and impermeable layer depths or an inspection of these by the Washakie County Planning Office are required for approval of the application.”
Washakie County SWTF Application ↗Re-checked Sep 26, 2026
Mandatory utility hookupConditional
Subdivision proposals in unincorporated Washakie County that propose connection to an existing public or private water or sewage system.
- The subdivider must provide a report evaluating the proposed water and sewage systems.
- For a proposed connection to an existing private or public sewage system, documentation must show that an application has been made and that the entity can and will provide service.
- When connecting to an existing water supply system, documentation must show that public or private water suppliers can and will supply water, the amount available, and the feasibility of extending service to the area.
- The regulations also require documentation concerning the potability of the proposed water supply.
- The subdivider must complete a water and sewage system review with the Wyoming Department of Environmental Quality.
- The county regulation is limited to the unincorporated area; lands within incorporated cities or towns are exempt from the county subdivision regulations.
“Documentation that public or private water suppliers can and will supply water to the proposed subdivision, stating the amount of water available for use within the subdivision and the feasibility of extending service to that area; [...] Where utilization of or connection to an existing private or public sewage system is proposed, documentation that application to such entity has been made and that the entity can and will provide service;”
Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
Subdividing landRegulated (with conditions)
Division of land in unincorporated Washakie County for sale, building development or redevelopment, or residential, recreational, industrial, commercial, or public uses.
- A subdivision permit is not required for listed statutory or county exemptions, including certain immediate-family transfers, court-created divisions, security instruments, incorporated-city or town land, transfers to governmental entities, railroad rights-of-way, agricultural-purpose divisions, boundary adjustments, cemetery lots, certain unmanned facilities, cluster developments, and certain separate parcels.
- Applications pending on January 1, 2024 are generally reviewed under the regulations, except where preliminary plat approval and required improvements were completed before that date unless the Planning Commission determines application is necessary to avoid substantial public-health, safety, or welfare risk.
- Development may also have to conform to municipal requirements based on location.
“Unless exempt, the division of a lot, tract, parcel or other unit of land for the purpose of sale, building development or redevelopment, for residential, recreational, industrial, commercial or public uses shall require a subdivision permit; and No person shall subdivide land located in the unincorporated area of Washakie County, or commence construction of a subdivision without securing a subdivision permit in the manner prescribed in these regulations.”
washakiecountywy.gov ↗Re-checked Sep 10, 2026
Driveway accessRequired
Construction of an access driveway connecting to a Washakie County road.
- A county access permit application and payment of the proper fee are required before approval and before associated construction begins.
- A preliminary site inspection occurs before construction and a final inspection occurs after completion.
- The permit is issued if the completed driveway meets the approval of the Washakie County Road Superintendent.
- The access must be completed with an appropriate surface, approved before use, and maintained to continued compliance.
- The gravel requirement may be waived by the County Road Superintendent or Engineer.
- The culvert minimum is 18 inches unless otherwise approved.
- Construction must be completed within 30 days of preliminary approval unless an extension is granted for extenuating circumstances.
minimum culvert diameter: >= 18 inches (unless otherwise approved) · construction completion deadline: 30 days (after Preliminary Approval; extension may be granted for extenuating circumstances)
“Upon completion of Application to Construct Access Driveway and payment of proper fee, a County Road Superintendent will conduct a preliminary site inspection prior to construction to insure that access location, materials to be used, and type of installation are in compliance with the restrictions and regulations of Washakie County. Another inspection will be made upon completion of the work, and permit will be issued if completed driveway meets the approval of the Washakie County Road Superintendent.”
Application for Permit to Access County Road ↗Re-checked Sep 10, 2026
2 more reviewed findings on this topic
- Limited — Access roads and common driveways within subdivisions in unincorporated Washakie County.
  “Each lot within the subdivision shall be served by a minimum of one fire access road.”
  Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
- Required — Lots within proposed subdivisions in unincorporated Washakie County.
  “A subdivision must provide reasonable access from each lot within the subdivision to a public road as a condition of approval. The arrangement, design and construction of all roads within the subdivision, and the connections to a public road, may be required to be done in accordance with plans and specifications of a licensed engineer as a condition of approval.”
  Washakie County Subdivision and Development Regulations ↗Re-checked Oct 6, 2026
Building in a floodplainLimited
Lots proposed for development through the Washakie County subdivision process in unincorporated areas.
- Lots in areas subject to flooding may be developed only if the hazard is eliminated or mitigated.
- If hazards cannot be mitigated, affected areas must be placed in lots where development is prohibited.
- A preliminary plat must delineate hazard areas within or adjoining the subdivision, including floodplains.
- This evidence establishes subdivision hazard-area review, not a separate countywide floodplain-development permit or a governing floodplain-map source.
- The regulations are effective January 1, 2024.
“Lots proposed for development shall not be located in areas subject to avalanches, flooding, landslides, rockfalls, mudflows, unstable slopes or soils, or high wildfire hazard areas unless these hazards are eliminated or mitigated. If hazards cannot be mitigated, then affected areas shall be placed in lots where development is prohibited.”
Washakie County Subdivision and Development Regulations ↗Re-checked Oct 6, 2026
One more reviewed finding on this topic
- Limited — Subdivision development requiring a preliminary plat in unincorporated Washakie County.
  “Delineation of all hazard areas within or adjoining the subdivision, including but not limited to, floodplains, unsuitable soil and unfavorable topographical conditions.”
  Washakie County Subdivision and Development Regulations ↗Re-checked Sep 10, 2026
Permit feesPublished (with conditions)
Subdivision applications in unincorporated Washakie County.
- Applies to subdivisions unless exempt under the regulations.
- A sketch-plan review fee and materials must be submitted at least 5 business days before a regularly scheduled meeting.
- For a preliminary plat, the listed fee applies except for a simple subdivision after sketch-plan approval.
- The regulations are effective January 1, 2024.
sketch plan review fee: 50 USD (Subdivision sketch-plan application.) · preliminary plat review fee: 100 USD (Except for a simple subdivision, after sketch-plan application approval.)
“Sketch plan review fee of $50.00 (fifty dollars) and all required materials shall be submitted to the Planning Office at least 5 business days prior to a regularly scheduled meeting.”
Washakie County Subdivision and Development Regulations ↗Re-checked Oct 6, 2026
3 more reviewed findings on this topic
- Published (with conditions) — Subdivision permit review applications in the unincorporated area of Washakie County, Wyoming.
  “Sketch plan review fee of $50.00 [...] Preliminary plat review fee of $100.00”
  Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
- Published (with conditions) — Owner-initiated vacation of an approved subdivision final plat under Washakie County's subdivision regulations.
  “The petitioner shall also submit payment of a $150.00 plat vacation fee.”
  Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
- Published (with conditions) — County subdivision-permit review fees for subdivision applications in unincorporated Washakie County.
  “Sketch plan review fee of $50.00 (fifty dollars) [...] Preliminary plat review fee of $100.00 (one hundred dollars);”
  Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
Permit processPublished (with conditions)
Subdivision permit process for land divisions for sale, building development, or redevelopment in unincorporated Washakie County.
- Unless exempt, a subdivision permit is required.
- Submission of a final plat to the Planning Commission is the permit application.
- The Board of County Commissioners signs the subdivision permit after compliance with the regulations.
- The sketch plan application starts the process; the Planning Commission acts within 45 days of a complete application.
- Sketch-plan and preliminary-plat materials must generally be submitted at least 5 business days before a regularly scheduled meeting.
- Incorporated municipalities may impose additional requirements based on location.
Planning Commission sketch-plan action deadline: 45 days (from submission of the complete Sketch Plan Application) · meeting submittal lead time: >= 5 business days (before a regularly scheduled meeting)
“No person shall subdivide land located in the unincorporated area of Washakie County, or commence construction of a subdivision without securing a subdivision permit”
Washakie County Subdivision and Development Regulations ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Published (with conditions) — Subdivision of land in unincorporated Washakie County for sale, building development or redevelopment for residential, recreational, industrial, commercial, or public uses.
  “Unless exempt, the division of a lot, tract, parcel or other unit of land for the purpose of sale, building development or redevelopment, for residential, recreational, industrial, commercial or public uses shall require a subdivision permit; and”
  Washakie County Subdivision and Development Regulations ↗Re-checked Oct 6, 2026

Wyoming rules that apply here

Building permitLimited
State fire-marshal plan review before new construction, remodeling, or installation of aboveground flammable or combustible fuel storage tanks for specified buildings and facilities statewide, where the state retains authority.
- The requirement is subject to W.S. 35-9-108(h), subsection (q), and W.S. 35-9-118.
- Covered categories include state or local government buildings or structures; public buildings over 5,000 square feet including basement; multistory public buildings; child-care centers housing more than 10 children; specified public assembly and hospitality uses regardless of size; and public or private aboveground fuel-dispensing facilities.
- The requirement does not apply to municipalities or counties that have received enforcement authority for fire safety standards under W.S. 35-9-121.
- No covered new construction or remodeling may begin until the state fire marshal approves the plans.
- If no written violation notice is given within 21 working days, plans are approved as submitted; corrected plans are approved if no written violation notice is given within 10 working days.
- Plan review is not required for remodeling exempt from permitting under the International Code; special rules apply to remodeling affecting built-in fire protection systems and to projects subject to sole local plan-review authority.
public-building floor area threshold: > 5000 square feet including basement · child-care occupancy threshold: > 10 children · initial plan-review response period: 21 working days (If no written violations are provided within this period, plans are approved as submitted.) · corrected-plan response period: 10 working days (If no written violations are provided within this period, corrected plans are approved as resubmitted.)
“Except as provided under subsections (h) and (q) of this section and W.S. 35-9-118, prior to beginning any new construction, the remodeling of existing buildings or the installation of aboveground flammable or combustible fuel storage tanks, the owner or the owner's designated representative shall submit plans to the state fire marshal for review of the proposed project for compliance with applicable fire and electrical safety standards for:”
2025 Wyoming Statutes, Article 1 — Department of Fire Prevention and Electrical Safety ↗Re-checked Oct 5, 2026
One more reviewed finding on this topic
- Limited — Specified new construction, remodeling, and aboveground flammable or combustible fuel storage tanks subject to Wyoming fire and electrical safety plan review.
  “shall submit plans to the state fire marshal for review”
  Article 1 - Department of Fire Prevention and Electrical Safety ↗Re-checked Sep 26, 2026
Owner-builder exemptionConditional
Owner-builder construction subject to Wyoming fire, building, existing-building, or electrical safety enforcement.
- Municipalities and counties may apply for delegated enforcement authority.
- Before initial delegation, the local governing body must adopt minimum standards equivalent to or more stringent than applicable state standards.
- If the local jurisdiction fails to maintain required standards or certified inspectors, enforcement authority may revert to the state department.
- The statute does not itself create a statewide owner-builder exemption from local licensing or permitting.
“The state fire marshal shall delegate complete authority to municipalities and counties which apply”
Article 1 - Department of Fire Prevention and Electrical Safety ↗Re-checked Oct 4, 2026
2 more reviewed findings on this topic
- Available — An owner acting as the general contractor or performing ordinary construction work on the owner's primary residence in Wyoming.
  “Contractor licensing (except electrical) is not done by the state of Wyoming. Rather, the option to license contractors is deferred to the local jurisdiction where the construction activity is to take place.”
  Startup Resources — Wyoming Business Council ↗Re-checked Oct 3, 2026
- Conditional — An owner acting as the general contractor for residential construction in Wyoming.
  “Rather, the option to license contractors is deferred to the local jurisdiction where the construction activity is to take place.”
  wyomingbusiness.org ↗Re-checked Oct 4, 2026
Building code adoptedAdopted (with conditions)
The Wyoming Department of Fire Prevention and Electrical Safety's statewide adoption and administration of the 2024 International Building Code, including state fire-marshal plan review under the statutory categories in W.S. 35-9-108(a).
- The 2024 International Building Code was adopted as part of Wyoming's 2024 International Codes on June 28, 2024.
- The state fire-marshal plan-review requirement applies to state or local government-owned or leased buildings; public buildings over 5,000 square feet including basement; multistory public buildings; child-care centers housing more than 10 children; specified public assembly, hospitality, and entertainment uses regardless of size; and public or private aboveground fuel-dispensing facilities.
- The statutory plan-review provision is subject to W.S. 35-9-108(h) and (q) and W.S. 35-9-118.
- W.S. 35-9-108(h) excludes municipalities or counties that have received enforcement authority for fire-safety standards under W.S. 35-9-121.
- Under W.S. 35-9-108(q), plan review is not required for remodeling exempt from permitting under the International Code; remodeling under $40,000 affecting a built-in fire-protection system requires review with a fee of no more than $50 per hour; remodeling costing $40,000 or more requires review and fees under W.S. 35-9-108(d); and submission to the state fire marshal is not required when review is submitted to a local governmental entity with sole plan-review authority under W.S. 35-9-121(b).
- W.S. 35-9-118 excludes farms or ranches of 40 acres or more on deeded land; specified hospitals and health-care facilities except as permitted under W.S. 35-9-121.1; mines and appurtenant facilities, oil-field operations, petroleum refineries, and liquefied petroleum gas facilities; specified railway property and equipment; and specified utility automotive equipment. The state fire marshal may still assist those properties or local governmental entities upon request under W.S. 35-9-121.
- The Wyoming State Fire Marshal's plan-review page states that plans must be accepted or rejected within 5 business days, complete-submittal review is generally completed within 21 business days after acceptance, fees are due before issuance of a Permit to Construct, and no work may begin before that permit is issued.
- Local enforcement authority requires state delegation under W.S. 35-9-121; a local authority's standards must be equivalent to or more stringent than the department's standards, and local authority can revert to the department if required standards are not maintained.
building code edition: 2024 International Building Code · adoption date: 2024-06-28 · public-building plan-review threshold: > 5000 square feet of total floor area including basement · child-care plan-review threshold: > 10 children housed · remodeling review threshold: 40000 USD (Remodeling below this amount affecting a built-in fire-protection system is reviewed at no more than $50 per hour; remodeling at or above this amount is subject to W.S. 35-9-108(d).) · remodeling fire-protection review fee cap: <= 50 USD per hour (Applies to remodeling costing less than $40,000 that affects a built-in fire-protection system.)
“The State of Wyoming, on June 28, 2024 adopted the 2024 International Codes. The following codes apply: 2024 International Fire Code 2024 International Building Code 2024 International Fuel & Gas Code 2024 International Mechanical Code 2024 International Existing Building Code 2026 National Electrical Code”
Plan Review ↗Re-checked Oct 1, 2026
One more reviewed finding on this topic
- Adopted (with conditions) — Statewide Wyoming building-code adoption applicable in Washakie County, subject to any lawful local enforcement-authority provisions and use-specific exceptions.
  “The State of Wyoming, on June 28, 2024 adopted the 2024 International Codes. The following codes apply: 2024 International Fire Code 2024 International Building Code 2024 International Fuel & Gas Code 2024 International Mechanical Code 2024 International Existing Building Code”
  Wyoming State Fire Marshal ↗Re-checked Sep 10, 2026
InspectionsLimited
Newly constructed or remodeled buildings subject to the Wyoming state fire-marshal plan-review regime.
- The requirement is subject to W.S. 35-9-108(h), W.S. 35-9-108(q), and W.S. 35-9-118.
- It does not apply to municipalities or counties that have received enforcement authority under W.S. 35-9-121.
- W.S. 35-9-118 exempts farms or ranches of 40 acres or more on deeded land and listed hospitals, health-care facilities, mines, oil-field operations, petroleum refineries, liquefied petroleum gas facilities, railway facilities, and certain utility automotive equipment.
- The inspection determines conformance with the plan review or amended plan review.
“shall inspect the building and determine conformance”
Article 1 - Department of Fire Prevention and Electrical Safety ↗Re-checked Sep 26, 2026
Certificate of occupancyLimited
Newly constructed buildings subject to state fire-marshal plan review statewide.
- The requirement is subject to W.S. 35-9-108(h), subsection (q), and W.S. 35-9-118.
- It applies after new construction is completed and after the state fire marshal inspects the building and determines conformance with the plan review or amended plan review.
- A remodeled building receives a letter of compliance rather than a certificate of occupancy.
- No newly constructed or remodeled building may be used or occupied until the required certificate of occupancy or letter of compliance is issued.
- The state fire marshal may order use and occupancy to cease if the building is used before issuance.
- The state fire marshal requirement does not apply where a municipality or county has received enforcement authority under W.S. 35-9-121.
“Except as provided under subsections (h) and (q) of this section and W.S. 35-9-118, after new construction or remodeling of buildings is completed, the state fire marshal shall inspect the building and determine conformance with the plan review or amended plan review. If he finds conformance, the state fire marshal shall issue a certificate of occupancy for a newly constructed building and a letter of compliance for a remodeled building. No newly constructed or remodeled building shall be used or occupied until the state fire marshal has issued a certificate of occupancy or letter of compliance.”
2025 Wyoming Statutes, Article 1 — Department of Fire Prevention and Electrical Safety ↗Re-checked Oct 5, 2026
One more reviewed finding on this topic
- Limited — Newly constructed buildings subject to the Wyoming state fire-marshal plan-review regime.
  “If he finds conformance, the state fire marshal shall issue a certificate of occupancy for a newly constructed building and a letter of compliance for a remodeled building. No newly constructed or remodeled building shall be used or occupied until the state fire marshal has issued a certificate of occupancy or letter of compliance.”
  Article 1 - Department of Fire Prevention and Electrical Safety ↗Re-checked Sep 26, 2026
Off-grid sanitationLimited
Incinerating or composting toilets and other off-grid sanitation systems statewide in Wyoming.
- DEQ states that permits may be required for incinerating or composting toilets.
- The reviewed source does not specify the complete permit conditions or identify all local permitting variations.
“Permits may also be required for hydrostatic test discharge water, wastewater reuse, and incinerating/composting toilets.”
Permitting ↗Re-checked Oct 5, 2026
One more reviewed finding on this topic
- Limited — Use of incinerating or composting toilets as off-grid sanitation in Wyoming.
  “Permits may also be required for hydrostatic test discharge water, wastewater reuse, and incinerating/composting toilets.”
  deq.wyoming.gov ↗Re-checked Oct 5, 2026
Well permitRequired
Construction of a groundwater well or other means of obtaining underground water in Wyoming when the person intends to acquire the right to beneficial use of the groundwater, including in Washakie County.
- Before commencing construction or other work connected with the proposed appropriation, the applicant must file an Application for Permit to Appropriate Ground Water, Form U.W. 5, with the State Engineer.
- Construction or other work may not proceed until the State Engineer grants the permit.
- The requirement applies to beneficial-use appropriations; monitoring wells used only for water-level measurement or water-quality sampling are separately exempt from State Engineer groundwater permitting.
- The State Engineer's general process page states that springs with flow greater than 25 gallons per minute, or springs proposed for uses other than domestic or stock watering, must be permitted through the Surface Water Division instead.
- Applications in groundwater control areas are subject to public notice and comment and may be denied if not in the public's water interest.
- A U.W. 6 Statement of Completion and Description of Well or Spring is required within 30 days after the well is completed, including pump installation, and ready for use.
domestic permit filing fee: 50 USD · stock permit filing fee: 50 USD · irrigation permit filing fee: 75 USD · municipal permit filing fee: 75 USD · industrial permit filing fee: 75 USD · miscellaneous permit filing fee: 75 USD · U.W. 6 filing deadline: 30 days after completion and readiness for use (Completion includes pump installation.)
“Any person who intends to acquire the right to beneficial use of any underground water in the state of Wyoming, shall, before commencing construction of any well or other means of obtaining underground water or performing any work in connection with construction or proposed appropriation of underground water or any manner utilizing the water for beneficial purposes, shall file with the State Engineer an application for a permit to make the appropriation (i.e., an Application for Permit to Appropriate Ground Water, or a U.W. 5 Form) and shall not proceed with any construction or work until a permit is granted by the State Engineer (W.S. 41-3-930).”
Water Well Construction ↗Re-checked Sep 26, 2026
3 more reviewed findings on this topic
- Not required — Monitoring wells used generally to measure water levels or collect water samples for analytical purposes, where the well is not used for production of water for beneficial use.
  “No, as of March 12. 2013, the State Engineer's Office - Ground Water Division no longer requires monitoring wells to be permitted through the Division. In general, monitoring wells are used to measure water levels and/or collect water samples for analytical purposes. Monitoring wells are not used for production of water for beneficial use.”
  Ground Water Frequently Asked Questions ↗Re-checked Sep 26, 2026
- Required — Construction of a groundwater well or development of a spring in Wyoming, including domestic and stock wells or springs flowing at most 25 gallons per minute.
  “Wells and Springs - Before you drill a well, or develop a spring* (that flows less than or equal to 25 gallons per minute (gpm) and will be used f or D omestic and/or Stock W atering use only), you must submit an "Application for Permit to Appropriate Ground Water", or U.W. 5 Form, to the Ground Water Division and receive an approved permit prior to commencement of any drilling or spring development activities.”
  seo.wyo.gov ↗Re-checked Sep 21, 2026
- Required — A person seeking the right to beneficial use of underground water in Wyoming through a well or other means of obtaining underground water.
  “Any person who intends to acquire the right to beneficial use of any underground water in the state of Wyoming, shall, before commencing construction of any well or other means of obtaining underground water or performing any work in connection with construction or proposed appropriation of underground water or any manner utilizing the water for beneficial purposes, shall file with the State Engineer an application for a permit to make the appropriation (i.e., an Application for Permit to Appropriate Ground Water, or a U.W. 5 Form) and shall not proceed with any construction or work until a permit is granted by the State Engineer (W.S. 41-3-930).”
  Water Well Construction ↗Re-checked Oct 5, 2026
Agricultural exemptionConditional
Certain divisions of land in unincorporated Wyoming made for agricultural purposes or affecting agricultural property-line alignment.
- The exemption is subject to the article's anti-evasion rule.
- The county board may adopt documentation requirements concerning proper use and implementation of the exemption.
- The statutory provision covers a sale or other disposition of land for agricultural purposes or a division affecting the alignment of property lines for agricultural purposes.
- Other applicable zoning, subdivision, wastewater, access, and utility requirements may still apply where not exempted.
“A division which is a sale or other disposition of land for agricultural purposes or affects the alignment of property lines for agricultural purposes;”
wyoleg.gov ↗Re-checked Oct 5, 2026
One more reviewed finding on this topic
- Available (with conditions) — Certain land divisions, sales, dispositions, or property-line adjustments for agricultural purposes under Wyoming subdivision law, including unincorporated areas.
  “A division which is a sale or other disposition of land for agricultural purposes or affects the alignment of property lines for agricultural purposes;”
  Wyoming Statutes, Title 18, Article 3 ↗Re-checked Oct 1, 2026
Short-term rentalsAllowed
Short-term rental of detached one- and two-family dwellings and townhomes for purposes of Wyoming fire, building, and electrical standards.
- The statute addresses classification under fire, building, and electrical standards and the International Building Code.
- This claim does not resolve local zoning, licensing, lodging-tax, health, or other local requirements.
“short term rental of detached one (1) and two (2) family dwellings and townhomes shall not be regulated as a commercial use”
Title 35 Wyoming Statutes ↗Re-checked Oct 5, 2026
county zoning authorityGeneral
County regulation of the location and use of buildings and structures and the use, condition of use or occupancy of land in unincorporated areas of Wyoming.
- The authority is exercised by each board of county commissioners for the unincorporated area of the county.
- County zoning may not contravene the zoning authority of an incorporated city or town.
- A zoning resolution or plan may not prevent a use or occupancy reasonably necessary for extraction or production of mineral resources.
- A board may not require land use or physical development to be consistent with a local land use plan unless the applicable plan provisions have been incorporated into local zoning regulations.
- Minimum lot size requirements or other zoning measures may not prevent residential or agricultural uses authorized for land divisions exempt from subdivision requirements under W.S. 18-5-303(a)(i).
- Private schools meeting the statutory requirements may not be regulated differently from public schools: certification by the professional engineer or architect of record, capacity for fifty (50) students or more, and ownership and operation by a not-for-profit entity.
“To promote the public health, safety, morals and general welfare of the county, each board of county commissioners may regulate and restrict the location and use of buildings and structures and the use, condition of use or occupancy of lands for residence, recreation, agriculture, industry, commerce, public use and other purposes in the unincorporated area of the county.”
Wyoming Statutes, Title 18, W.S. 18-5-201 ↗Re-checked Sep 21, 2026
county building authorityLimited
County enforcement and interpretation of local or state fire, building, existing-building, and electrical safety standards, including residential construction in unincorporated areas, when the county obtains local enforcement authority under W.S. 35-9-121.
- A county must apply for local enforcement authority and receive delegation from the state fire marshal by letter.
- Before initial delegation, the state fire marshal must determine that the county has adopted minimum standards by ordinance or resolution equivalent to or more stringent than applicable department standards.
- If the county fails to adopt new standards within six (6) months after department adoption, or fails to maintain standards at least meeting statewide standards, enforcement authority immediately reverts to the department.
- For fire and building code enforcement, inspectors employed or contracted after July 1, 2010 must be certified by the International Code Council or the International Conference of Building Officials.
- If electrical-code authority is requested, an electrical inspector must be certified by the International Code Council or International Association of Electrical Inspectors and licensed by Wyoming as a journeyman or master electrician.
- If the county fails to maintain a required certified inspector, enforcement authority reverts to the department one hundred twenty (120) days after the inspector leaves.
- A local governmental entity may assume sole plan-review authority and sole construction-inspection authority on approved plans, subject to the statutory certification requirements.
- If local code provisions are more stringent than adopted state codes, the local code prevails.
- The statute grants authority to enforce and interpret building standards; it does not establish that every Wyoming county universally requires a residential building permit without county-specific implementation.
new standards adoption deadline: 6 months (following adoption of new standards by the department) · certification applicability date: July 1, 2010 (inspectors employed or contracted after this date) · authority reversion period after certified inspector leaves: 120 days
“The state fire marshal shall delegate complete authority to municipalities and counties which apply to enforce and interpret local or state fire, building, existing building standards or electrical safety standards which meet the requirements of this section. The state fire marshal shall notify the governing body of the municipality or county of the minimum standards and requirements of this act and W.S. 16-6-501 and 16-6-502 and transfer jurisdiction and authority by letter.”
Wyoming Statutes, Title 35, W.S. 35-9-121 ↗Re-checked Sep 21, 2026

Inside cities and towns in Washakie County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

Local zoningPresent (with conditions)
Land within the incorporated City of Worland, Washakie County, Wyoming.
- The cited table is effective August 17, 2021 under Resolution 2021-6.
- Uses may be permitted by right or by special exemption depending on the zoning district and use type.
- This claim does not extend to unincorporated Washakie County or other municipalities.
“24-9-2: Table – Zoning District Regulations Effective 08/17/21 – Resolution 2021-6 Page 1 of 17 P = Uses permitted by Right S = Uses permitted by Special Exemption ZONING DISTRICTS”
24-9-2: Table – Zoning District Regulations ↗Re-checked Oct 6, 2026

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.

Living off-grid in Washakie County, Wyoming

Is Washakie County a good place to live off-grid or homestead?

Washakie County scores 51/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and low administrative friction for a quiet rural property. Watch-outs: weak self-sufficiency basics: only 12.5″ of rain a year and elevated current hazard exposure.

Do you need a building permit in Washakie County, Wyoming?

Washakie County does not require a county building permit for a home in unincorporated areas, and it has no county-wide zoning. Onsite septic is permitted by Washakie County Planner (Small Wastewater, DEQ-delegated). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in Washakie County?

Living in an RV on your own land in Washakie County is allowed on a temporary basis only: Recreational vehicles and other camping units used for occupancy within a Washakie County campground on private land in unincorporated areas. The campground must provide adequate and safe sewage systems, water supply systems, and access to a public road. Campgrounds must comply with applicable drainage, fire-protection, road, and utility requirements as determined by the Planning Office, Planning and Zoning Commission, and/or Board of County Commissioners. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Washakie County, Wyoming?

Land in Washakie County runs about $1,623 per acre, based on the latest county data.

What is the water situation in Washakie County?

Washakie County gets about 12.5" of rain a year, with severe drought in roughly 19.3% of years.

How remote is Washakie County?

A typical private-land location has about 595 people within 15 miles and 188,541 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Building permits, zoning and land rules in Washakie County, Wyoming

At a glance

Who to call

Do you need a building permit in Washakie County, Wyoming?

Who issues building permits in Washakie County, and who handles septic and driveways?

Does Washakie County have zoning, and do Worland and Ten Sleep?

Who issues septic permits in Washakie County, and how do they work?

Can you live in an RV or tiny home on your land in Washakie County?

What are the steps to build a home in Washakie County, Wyoming?

What should you check before buying land in Washakie County?

Watch-outs

Sources

Compared with neighboring counties

Washakie County in Wyoming

How Washakie County scores

Find land. Bring the promising ones back.

Parcel due diligence

Cities and towns in Washakie County

Answers from the rulebook for Washakie County

Washakie County rules

Wyoming rules that apply here

Inside cities and towns in Washakie County

Living off-grid in Washakie County, Wyoming

Is Washakie County a good place to live off-grid or homestead?

Do you need a building permit in Washakie County, Wyoming?

Can you live in an RV or tiny home on your land in Washakie County?

How much does land cost in Washakie County, Wyoming?

What is the water situation in Washakie County?

How remote is Washakie County?

How Washakie compares in Wyoming