Wyoming County Zoning, Building Permits and the 30-Day Permit Clock: 8 Counties Have No Zoning (2023 Survey) and HB0002 Starts July 2026

October 29, 2026

If you plan to build a home, a shop, or a business building outside city limits in Wyoming, the first question is not which license to buy. It is whether your county regulates land use where your parcel sits. Wyoming's 23 counties do not all work the same way. Some zone the entire county, some zone only part of it, and eight told the state in 2023 that they have no zoning at all. This guide shows you how to confirm the rules for your land and move a permit through the process.

Informational content, not legal or tax advice. This article explains general processes and reported facts. Zoning, permit and tax rules change, and the rules that control your project are set by your county, by your city if you are inside city limits, and by state law. For complex projects, talk with a qualified land-use attorney, a licensed surveyor, or a certified public accountant before you commit money.

Start here: counties do not issue business licenses

Keep two questions separate. Counties in Wyoming issue no business licenses. Only cities and towns may. Counties handle land use, building, septic and liquor matters. Retail liquor licenses are population-quota licenses issued by cities, towns and counties. If you need a business license, check with the city clerk where you will operate. Wyoming also has no general statewide business license. Your entity registers with the Wyoming Secretary of State at sos.wyo.gov, and you open a sales and use tax license with the Department of Revenue only if you make taxable sales.

Materials you need

• Your parcel number and legal description from the county assessor's records
• A site plan or survey showing property lines, setbacks, easements, access roads, and well or septic locations
• Building plans, if you plan to construct or alter a structure
• The county's current zoning or land use regulations, which you request from the county planning office
• Phone numbers and email addresses for the county planning office, the building department, and septic or wastewater staff
• Your city's contact information if the parcel sits inside city limits
• A list of every activity you plan on the property, so you can ask about each permit at once

Step 1: Find out whether your county has zoning

The best public snapshot is a 2023 survey by the Wyoming County Commissioners Association, titled County Zoning, Licensing and Permitting and updated 2023-09-09. It appears in the interim committee materials posted on wyoleg.gov. Treat it as a starting point, not a current answer. County rules change, and the survey does not reflect changes made since 2023.

Survey answer (2023)	Counties
Zoning for the entire county (11)	Albany, Carbon, Hot Springs (land use regulations similar to zoning, not classic zoning), Natrona, Park, Platte, Sheridan, Sublette, Sweetwater, Teton, Uinta
Zoning for a portion of the county (3)	Big Horn, Laramie, Lincoln
Answered no, but lists rules for a portion	Campbell, which cites Chapter Seven zoning regulations. Check with Campbell County Planning.
No zoning (8)	Converse, Crook, Fremont, Goshen, Johnson, Niobrara, Washakie, Weston

Niobrara told the survey it has no required permits, although its zoning board helps with land splits and subdivisions.

Call the county planning office and ask three questions: Does zoning apply to my parcel's location? Which permits does the county issue for my project? How long are those permits taking right now?

Step 2: Understand what the state allows counties to regulate

Wyoming law gives county commissioners authority over the unincorporated area. Under W.S. 18-5-201, commissioners may regulate and restrict the location and use of buildings and structures, and the use of land for residence, recreation, agriculture, industry, commerce and other purposes. Three other rules shape what you can do:

• No zoning resolution may prevent uses reasonably necessary to extract mineral resources.
• Where a zoning resolution applies, no building or land use may proceed without a zoning certificate (W.S. 18-5-203).
• The county subdivision article does not apply to sales of parcels of 35 acres or larger, subject to easement requirements (W.S. 18-5-303(b)). A large parcel sale is not automatically exempt from every county requirement, so confirm with the county.

Wind energy facilities over 0.5 MW and solar energy facilities need a county permit under W.S. 18-5-501 and 18-5-502.

Step 3: Match each permit to your project

Permit types vary by county. The 2023 survey reported the following permits and processing times. These figures are from 2023 and may have changed.

County	Permits reported in 2023	Reported timing
Campbell	Building; small wastewater	10 days; 48 hours
Natrona	Building	5 business days
Park	Building and zoning	1 to 14 days
Sheridan	Building, zoning, septic, floodplain	14 days or less
Laramie	Commercial, residential and site permits	7 to 45 days
Uinta	Access, building, conditional use	1 to 2 days

Other counties reported permit types without timing in the survey. Sweetwater issued construction permits. Teton issued building, grading, sign and use permits. Big Horn issued subdivision, floodplain and wastewater permits. Sublette and Washakie also reported permits, so confirm their current requirements directly. Crook and Fremont reported only small wastewater permits, which shows that a county with no zoning can still require permits.

Step 4: Apply for the building or land use permit

1. Request a pre-application conversation. Describe the project, the parcel, and the planned use. Ask which permit covers each element.
2. Confirm fees and the submittal checklist. Fees vary by county and by permit. This guide does not list county fee schedules, so get the current amounts in writing from the county.
3. Submit a complete application. Include the site plan, building plans, and any septic or wastewater documents. Incomplete applications are a common cause of delay.
4. Respond to review comments quickly. Staff may request clarification, and your response time affects your schedule.
5. Schedule inspections. Permit approval does not end the process. Building inspections, and septic inspections where required, must still happen.
6. Ask about a certificate of occupancy. Confirm with the building department whether your project needs one before anyone occupies the structure.

Step 5: Use the HB0002 timeline for a residential building permit

HB0002 (2026 Enrolled Act 16, W.S. 16-13-101 and -102) takes effect 2026-07-01 and applies to applications filed on or after that date. It covers counties that regulate residential use under W.S. 18-5-201 or that adopted the International Residential Code (IRC), and cities and towns that adopted the IRC.

The law covers a residential building permit for a dwelling of one or two units, up to three stories and up to 3,000 square feet of finished area per unit, regulated under the adopted IRC. It covers houses, not commercial buildings. A shop, office, or storefront does not fall under this timeline.

The main deadlines are:

• 10 business days: the government must say whether your application is complete.
• 30 calendar days: the government must approve or deny a completed application. The clock pauses while the government requests clarification or while a required state or federal approval is pending. The parties may extend the deadline by written agreement.
• 7 calendar days: if the application is denied, the government must give written reasons.
• 10% fee reduction: if conditions are added after approval that were not imposed at initial review, application fees drop by 10%, unless the conditions are caused by unanticipated site conditions.
• Missed deadline: the application is deemed approved as submitted the next day. Inspections and the certificate of occupancy still apply.

Step 6: Check the rules that apply beyond zoning

Zoning is only one layer. Use this checklist to avoid surprises:

• Septic and wastewater: confirm requirements with the county, even where the county has no zoning.
• Electrical work: the state licenses electrical trades through the Department of Fire Prevention and Electrical Safety.
• Contractors: Wyoming has no state contractor, plumber or HVAC license. Contractors are licensed city by city. In 2023, only Laramie and Teton reported county contractor licensing, so check with the county about what it issues now.
• Inside city limits: the city may apply its own building and zoning rules on top of county requirements.
• Home businesses: county home-occupation rules are a separate question from building permits. Ask about them early.

Tips and common mistakes

• Mistake: treating the 2023 survey as current. Confirm every answer with the county before you rely on it.
• Mistake: assuming no zoning means no building rules. A county with no zoning can still require septic and other permits. Check septic, state electrical rules, and the city if you are inside city limits.
• Mistake: applying to the county for a business license. Counties issue none. Go to the city clerk where you will operate.
• Mistake: assuming HB0002 covers your project. It covers residential houses only, and only applications filed on or after 2026-07-01.
• Mistake: reading the 30-day deadline as a waiver of inspections. It is not. Inspections and the certificate of occupancy still apply.
• Tip: keep a log. Record dates, staff names, and what you were told. Review clocks depend on when an application is complete, so a log helps you show when the clock started.

What you can reasonably expect

Results depend on your county, your project, and how complete your application is. A well-prepared application in a county that reported short processing times in 2023 may move faster than an incomplete one in a county with longer reported timelines. For a residential house filed on or after 2026-07-01, the HB0002 framework may give you a defined decision window, subject to the pauses described above. Nothing in this guide guarantees approval or a specific decision date.

Where to confirm current rules

• Your county commission office and county planning or building department (contact your county directly)
• Wyoming Secretary of State: https://sos.wyo.gov/
• WyoBiz filing search for entity names: https://wyobiz.wyo.gov/Business/FilingSearch.aspx
• Wyoming Department of Revenue, Excise Tax Division: https://excise-tax-div.wyo.gov/