Fremont County, Wyoming issues no building permits for unincorporated land: it has no county-wide zoning or county building code and does not issue certificates of occupancy. Fremont County Planning and Rural Addressing issues the permits the county does require — small wastewater (septic), floodplain development, rural address and land division — from Room 360 of the courthouse, 450 N. 2nd St., Lander (307-332-1077). Inside Lander and Riverton, the city building departments issue building permits.
This guide covers which permits apply in unincorporated Fremont County, who issues each one, the county’s published fees, state electrical and fire review, and what to check before building where no county building inspector will visit.
Confirm the authority having jurisdiction before filing. This guide is for projects in unincorporated Fremont County. Lander and Riverton enforce building codes and issue building permits themselves; Dubois, Hudson, Pavillion and Shoshoni have their own zoning and permit rules, so contact the town. Zoning on the Wind River Reservation is administered by the Intertribal Business Council (307-332-6625). Electrical permits and inspections everywhere in the county, cities included, come from the state Department of Fire Prevention and Electrical Safety.
Fremont County projects often involve a rural address, subdivision status, a septic permit, floodplain development rules in the mapped flood zones around Lander, Riverton, Dubois and Hudson, a well permit from the State Engineer’s Office, tribal or federal land interfaces, State Fire Marshal plan review for commercial and public buildings, and state electrical permits.
Wyoming’s state-adopted codes are the 2024 International Fire, Building, Fuel Gas, Mechanical and Existing Building Codes and the 2026 National Electrical Code, applied through the State Fire Marshal’s plan review and electrical program. Cities and counties add their own building, zoning and floodplain rules, so confirm which authority has jurisdiction for Fremont County projects. Wyoming’s state codes and review
Does unincorporated Fremont County require a building permit?
No. Fremont County has no county building code and issues no building permit or certificate of occupancy for unincorporated land; the county recommends building to the state-adopted codes with qualified contractors. Other permits still apply before work starts, and the State Fire Marshal reviews commercial and public buildings.
Short on time to read all of this?
Get a free quote →Permits that still apply
- A county small wastewater permit for any new or replacement septic system under 2,000 gallons a day (larger systems go to the Wyoming DEQ)
- A county floodplain development permit for any construction or excavation in a mapped flood hazard area; no construction is allowed in the mapped floodway
- A state electrical wiring permit for new construction or remodelling where the utility must connect or disconnect power, with state electrical inspection
- A county rural address for a new site, and county approval for any land division
- State Fire Marshal plan review for public and government buildings, schools, buildings over 5,000 sq ft with public access, multi-storey buildings, places of assembly, fire protection systems, alternative energy, Type I hoods and similar work (W.S. 35-9-108)
- A State Engineer’s Office permit for any new well
No county permit
- Building permits and certificates of occupancy for homes, additions, garages, shops and commercial buildings on unincorporated land
- County plumbing and mechanical permits: the county has adopted no plumbing or mechanical code
- County zoning approval, except South Pass City’s historic zoning and the reservation zoning administered by the Intertribal Business Council
- Septic, floodplain and state electrical rules still apply to these projects where their triggers are met
Lenders and insurers may still ask for inspections that the county does not provide. Inside a city or town, that municipality’s rules apply instead.
Get the permit before work begins. Starting without approval can lead to stop-work orders, double fees, correction orders, delayed occupancy, and problems with resale, financing, or insurance.
Who handles permitting in Fremont County?
Fremont County Planning and Rural Addressing administers the county’s subdivision, rural addressing, small wastewater and floodplain zoning regulations and the E911 address database. It does not issue building permits. Electrical permits and inspections, and plan review for the commercial and public buildings listed in W.S. 35-9-108, come from the state Department of Fire Prevention and Electrical Safety; the state’s jurisdiction chart lists the state as the enforcing authority for fire, building and electrical review in unincorporated Fremont County.
Not sure this scope needs a permit?
Get a free quote →| Detail | Information |
|---|---|
| Primary authority | Fremont County Planning and Rural Addressing (septic, floodplain, address, land division); no county building permit |
| Office | Room 360, Courthouse, 450 N. 2nd St. (3rd floor), Lander, WY 82520 · 307-332-1077 · septic: Small Wastewater Specialist 307-332-1830 (office hours are not published) |
| Apply | County application forms (septic, floodplain development, rural address, subdivision), by mail or in person; state electrical permits and State Fire Marshal plan review through the state’s online portal |
| State / local code basis | No county building code. State-adopted codes apply to work the State Fire Marshal reviews; Lander and Riverton enforce their own building codes inside city limits. |
| Common overlays | Floodplain zoning, septic, rural addressing, subdivision, State Engineer well permits, Wyoming DEQ for large wastewater and water supply systems, State Fire Marshal plan review and state electrical inspection |
| Contractor credentials | Local contractor license or registration where required, Wyoming electrical license where applicable, plumbing/mechanical/fire/specialty credentials, bonds, insurance, and separate trade permits where required |
Apply through the correct path. Septic, floodplain, address and land-division applications go to Fremont County Planning and Rural Addressing; book a pre-permit conference with the Small Wastewater Specialist before buying land or designing a septic system. Electrical wiring permits and State Fire Marshal plan review are applied for through the state’s online portal.
Fremont County permit fees
There is no county building permit fee because there is no county building permit. The county charges flat fees for the permits it does issue (FY 2026 fee schedule, effective 1 July 2026); state electrical and State Fire Marshal fees are separate.
Rather talk it over?
Call 1-855-478-4290 →| Fee component | How it works |
|---|---|
| Septic (small wastewater) permit | $650 new standard system, $700 nonconventional, $850 commercial, $600 replacement, $500 modification; $200 for each inspection after the second |
| Floodplain development permit | $750 |
| State / local plan review | State Fire Marshal plan review fees are set by the state’s rules and based on valuation; there is no county plan review |
| Trade permits | State electrical wiring permit $50, temporary power $40; no county plumbing or mechanical permits |
| Zoning / access / utilities | New rural address $130–$140 ($100 plus the fire sign); subdivision application $1,000 plus plat fees |
| Re-inspections / revisions | Additional fees may apply for failed inspections, revised plans, deferred submittals, expired permits, or work started without a permit |
Need a precise number for a specific Fremont County project? Send us the scope, address, and valuation and we can help estimate the filing path, likely reviews, and permit fee categories.
Fremont County trade permits
Without a county building permit, the trade permits that apply in unincorporated Fremont County are the state electrical wiring permit and the county septic permit, and electrical work needs a state-licensed electrician unless an owner exemption applies.
Electrical permits
Issued by the state Department of Fire Prevention and Electrical Safety through its online portal (no counter permits) for new construction or remodelling where the utility must connect or disconnect power, and inspected by state electrical inspectors. Solar, residential wind and generator installations also need State Fire Marshal plan review.
Plumbing & gas permits
The county issues no plumbing or gas permits. Septic systems need the county small wastewater permit, larger or high-strength wastewater systems and water supply systems are permitted by the Wyoming DEQ, and wells by the State Engineer’s Office.
Mechanical / HVAC permits
The county issues no mechanical permits. Type I commercial kitchen hoods, fuel tanks and dispensing, and spray finishing need State Fire Marshal plan review.
Rather not deal with the Fremont County building department?
Get a free quote →Fire, occupancy, and specialty permits
Commercial and public buildings in the categories listed in W.S. 35-9-108, alterations to them valued at $40,000 or more, changes of occupancy into those categories and all fire alarm, sprinkler and suppression work need State Fire Marshal plan review before work starts. The county issues no certificate of occupancy.
Wyoming has no state general-contractor licence, so contractor licensing is local. Electricians and electrical contractors are licensed by the state, and electrical work is permitted and inspected by the state unless the city or county has taken on electrical enforcement itself. Plumbing, mechanical and specialty credentials depend on the local jurisdiction. Contractor and electrical licensing in Wyoming
How to get a building permit in Fremont County
Confirm jurisdiction & zoning
Check whether the parcel is inside Lander, Riverton or a town, on the Wind River Reservation, or in a mapped flood hazard area, and whether State Fire Marshal plan review or a state electrical permit applies.
Prepare your application package
Assemble the permit form, site plan, construction drawings, valuation, scope, local contractor licenses, Wyoming electrical license information, energy documentation, engineering details, and any zoning or fire forms.
Submit application & plans
File septic, floodplain and address applications with Fremont County Planning and Rural Addressing in Lander, and state electrical and plan review applications through the state’s online portal. Inside a city or town, file with that municipality.
Plan review & corrections
The Small Wastewater Specialist holds an office consultation and site evaluation before issuing an Authorization to Construct; floodplain applications are reviewed against the county floodplain regulations; the State Fire Marshal reviews commercial plans.
Pay fees & receive permit
Pay the county septic, floodplain or address fee and any state electrical or plan review fee, and keep the approvals on site.
Schedule inspections
Call the Small Wastewater Specialist to inspect the septic system before backfilling, and book the state electrical inspection. There is no county footing, framing or final building inspection.
Want this handled start to finish?
Get a free quote →Inspections in Fremont County
In unincorporated Fremont County the county inspects only septic systems: the installer cannot backfill until the Small Wastewater Specialist has approved the system, and the permit is issued after that approval. Electrical work is inspected by the state, and buildings under State Fire Marshal review are inspected by the state. No one inspects the structure of a private home, so the owner should hire qualified contractors and build to the state-adopted codes, as the county recommends.
Do not cover septic or electrical work before it is inspected. Keep the septic permit, floodplain permit, electrical permit, any State Fire Marshal approval and contractor information with the property records.
Official Fremont County permitting resources
- 🏢 Fremont County Planning Department
- 🏢 Fremont County official website
- 🏢 Wyoming State Fire Marshal plan review
- 🏢 Wyoming electrical safety
- 📄 Wyoming State Fire Marshal - plan review
- 📄 Wyoming State Fire Marshal - adopted codes and rules
- 📄 Wyoming electrical safety permits and licensing
- 📄 Wyoming electrical licensing
- 📄 Wyoming wiring permits
- 📄 Wyoming State Fire Marshal Office
Inspections are where schedules slip.
Get a free quote →Simplify Fremont County permitting with Alliance Permitting
Fremont County permitting requires the right jurisdiction, complete drawings, clean contractor credential information, accurate valuation, and careful inspection coordination. Alliance Permitting is a permit expediter for Fremont County - our permit expediting services pair AI-driven document review with experts who understand Wyoming local filing paths, State Fire Marshal touchpoints, electrical permitting, contractor licensing, and correction cycles.
Trusted by leading builders and brands - including Dream Finders Homes, Tesla, Verizon, Hyatt, and Sunnova.
Contractors and builders choose Alliance for Fremont County because we deliver:
- Jurisdiction accuracy - we identify the correct city, county, State Fire Marshal, electrical inspection, fire district, floodplain, utility, and public works review path before submittal.
- Complete oversight - track every permit, revision, fee, and inspection across all your jobs in one place.
- Complete submissions - AI pre-checks plus expert review catch missing plans, forms, local contractor licenses, insurance certificates, signatures, and valuation issues before they become correction cycles.
Alliance Permitting is a permit documentation and submission company: we prepare your paperwork, file it correctly, and coordinate with the county planning office and state reviewers through issuance. We are not a contractor and do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.
Need a Fremont County building permit?
Get your Fremont County project permitted right. Alliance Permitting handles applications, plan check responses, and inspection coordination - so you build, not wait.
More Wyoming permitting guides
This guide is provided by Alliance Permitting for general informational purposes and reflects publicly available information believed accurate as of June 2026. Permit requirements, fees, codes, portals, contractor licensing, and review timelines change; always confirm current details with the local permit authority before filing. This is not legal advice.