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

Unincorporated Converse County does not require a general county residential building permit¹. Wyoming state fire review still covers specified projects, including government buildings, larger or multistory public buildings, certain childcare, assembly and hospitality uses, and fuel-dispensing facilities¹⁰. A covered project receives a state inspection after construction and must obtain a certificate of occupancy before a new building is used; a covered remodel receives a compliance letter¹⁰. We could not confirm that Converse County has accepted delegated building-code enforcement from the state, so ask Special Projects and the state fire marshal which office reviews an unusual, public-facing or commercial project^14,15. Inside Douglas, the city requires building permits subject to its exemptions; residential septic permits remain with county Special Projects, and wells need state approval^6,7,9.

Converse County has no general residential building-permit office for unincorporated land¹. Special Projects handles individual small-wastewater permits and inspections countywide, plus Flood Plain Construction permits under county jurisdiction^3,4,15. Regulated land divisions in unincorporated Converse County require Board of County Commissioners subdivision approval before sale, plat recording or subdivision construction; the executed and recorded final plat constitutes the permit¹⁶. Agricultural-purpose divisions or property-line adjustments may qualify for an exemption, subject to documentation and anti-evasion requirements¹⁷. Subdivision applications require the fee established by separate Board resolution, and the County Clerk charges recording fees; ask those offices for current amounts¹⁶. Road & Bridge handles county-road access applications and approval^5,15.

Converse County has no county zoning regulations for unincorporated land, and its Land Use Plan is guidance rather than an enforceable regulatory document^2,18. We could not confirm a general minimum dwelling size, setback or lot-coverage standard for unincorporated Converse County; ask Special Projects before designing¹⁵. Subdivision, floodplain, airport-influence and wastewater controls still apply, and wind or solar facilities generating more than 0.5 MW outside municipal limits require county siting review^12,18. Subdivision lots generally need at least 4 acres excluding road easements, with smaller Transitional Residential lots possible where public or community water or sewer is available¹⁷. Airport Influence Area subdivisions must meet Appendix V height and population-density restrictions and acknowledge them on the preliminary plat before processing¹⁹. Douglas and Glenrock administer municipal zoning; county small-wastewater authority and state well permitting remain separate^3,6,8,20.

Converse County Special Projects issues individual small-wastewater permits throughout the county; obtain authorization before installation, modification or sewage discharge from a dwelling³. Submit plans, specifications and design information with the application; the Director takes final action within 15 days of receiving a complete application³. Notify Special Projects at least 48 hours before backfilling during normal business hours; if inspection has not occurred within that interval, backfill only with the Director’s approval and digital photographs³. About 36.8% of Converse County soils lack severe limitations for a conventional drain field, so evaluate the specific site before choosing a system²¹. Septic permits require subdivision-compliant land, and a permit in the 100-year floodplain requires a FEMA letter of map amendment³. Privies, outhouses, pressure-distribution systems, sand mounds, lagoons and greywater systems need Wyoming DEQ approval³. We could not confirm composting or incinerating toilet rules; ask Special Projects and Wyoming DEQ^3,15.

County zoning does not restrict RV or tiny-home occupancy on private land in unincorporated Converse County¹³. The same county-zoning answer applies to manufactured homes and accessory dwellings; subdivision, floodplain, wastewater and other applicable state or county requirements still apply¹³. These occupancy answers do not establish tiny-home construction compliance or approval for a particular parcel¹⁸. Camping or lodging on county highways and adjoining rights-of-way is prohibited, except camping to assist with driving livestock²². In mapped flood zones A1-30, AH and AE, an RV must remain fewer than 180 consecutive days, stay fully licensed and highway-ready, or meet manufactured-home permit, elevation and anchoring requirements²³. Developing a transferable RV park requires a subdivision application and compliant water, sewage, fire and site arrangements²⁴.

1. Confirm whether the parcel is unincorporated; inside a city or town, ask the municipality about its building permit and zoning approval, while county septic and state well authority remain separate^3,6,11.
2. If the project creates regulated lots, secure Board of County Commissioners subdivision approval before sale, plat recording or construction¹⁶.
3. If the land lies in the Airport Influence Area, identify the applicable height and density restrictions before design¹⁹.
4. Obtain the state groundwater permit before drilling, use licensed well and pump contractors, and file the completion statement after the well is ready⁶.
5. Obtain the county septic permit, then give the county at least 48 hours' notice for the final inspection before backfilling³.
6. Obtain a Flood Plain Construction permit before work in a mapped special flood-hazard area⁴.
7. Obtain Road & Bridge approval before constructing access on county right-of-way^5,15.

A driveway on Converse County right-of-way is not legal until Road & Bridge approves the finished construction and records it; the department determines culvert sizing and construction details⁵. The approach procedure lists a $100 inspection fee within a 20-air-mile radius of the Road & Bridge Office⁵. Temporary county-road access needs an approved permit before construction, the adjacent landowner’s ink signature, and the completed application diagrams²⁵. Temporary access lasts at most 90 calendar days; payment accompanies the application, inspection fees vary by distance, and renewal must be completed at least 10 days before expiration with additional fees²⁵. Check flood mapping: county-jurisdiction special flood-hazard development needs a Flood Plain Construction permit, while septic permitting in the 100-year floodplain requires a FEMA letter of map amendment^3,4. Before well drilling, obtain state approval; domestic and stock applications generally carry a $50 filing fee, and licensed well and pump contractors are required⁶.