Building permits, zoning and land rules in Clark County, Wisconsin

Yes, for a new home. A new one- or two-family dwelling in Clark County requires a Wisconsin Uniform Dwelling Code permit, including a stick-built, modular or manufactured-home installation¹. The application needs plans, required data, contractor license information and a fee; apply to the municipality if it has delegated authority, otherwise to Wisconsin DSPS¹. The statewide code applies to dwellings built since June 1, 1980 and is enforced in every Wisconsin municipality⁶. An owner who will occupy the completed home may apply without Dwelling Contractor Certification, but the permit is still required⁸. County land-use and sanitary approvals are separate from the UDC permit^3,9.

The county does not issue the Uniform Dwelling Code permit; a municipality with delegated authority or Wisconsin DSPS does, and either one assigns the inspector¹. Inside Neillsville, the city issues its own building permits and runs its own zoning^4,11. The county's rules below apply to unincorporated Clark County. For county land-management permits, compliance inspections and records, start with Clark County Planning, Zoning & Land Information at 517 Court St, Room 204 in Neillsville¹². Septic stays with the county for every address, city or not⁵. New-home UDC inspections cover footings, foundation and reinforcement, rough work, insulation and the final inspection; notify the inspector named on the UDC permit when each stage is ready¹. Where county zoning applies, the zoning administrator issues a certificate of compliance, within ten days of completion if the work conforms, and the building cannot be occupied without it⁹.

Only partly. Clark County zoning applies to land within 300 feet of navigable streams and rivers, within 1,000 feet of navigable lakes, ponds and flowages, or to the landward side of the floodplain, whichever is greater; the county's sources do not show a general zoning-district ordinance for other private land². Outside those areas, ask the town clerk which local zoning governs the parcel³. Floodplain rules cover mapped special flood hazard areas on the flood insurance maps³. A zoning permit from the county zoning administrator comes before new development or a change in use, and a land-use permit lapses after two years if substantial work has not begun⁹. Structures generally sit at least 10 feet from side lot lines, with 25 feet combined across both side yards, and highway setbacks vary by road class⁹. Shoreland structures generally must stand at least 75 feet and 2 vertical feet from the ordinary high-water mark, subject to exceptions¹³, and nothing within 75 feet of it may exceed 35 feet in height³. Impervious-surface limits apply in shoreland, but we could not confirm a numeric coverage limit³. Unincorporated lots generally need at least one acre under the county's land-development rules, unless a city zoning provision or a stricter municipal ordinance applies⁵.

Clark County Planning and Zoning administers the county septic ordinance, which applies to the whole county and needs no town, city or village approval⁵. A sanitary permit comes before building any structure that needs a septic system (POWTS) or a nonplumbing sanitation system³. Applications need a soil and site evaluation and system plans, and a state sanitary permit is required before a POWTS is installed, replaced or modified³. Staff review soil tests and sanitary permits, and inspect every system at reconnection before backfilling⁷. The published fee schedule lists $350 for a new state sanitary permit and $150 for a county sanitary permit for non-plumbing sanitation; it is dated February 1, 2022, so confirm current amounts, and an after-the-fact POWTS application adds $100^9,14. A nonplumbing system is permitted only where the premises have no indoor plumbing or running water¹³. Wisconsin requires every septic system to be inspected at least once every 3 years¹⁵. Only about 0.3% of Clark County soils rate without severe limitations for a conventional drain field, so plan for a parcel-specific soil test and possibly an engineered system¹⁶.

We could not confirm a countywide rule for long-term RV occupancy, private-land camping or tiny-home occupancy in Clark County. The answer can depend on town zoning and county shoreland or floodplain controls^2,3. A manufactured home installed as a new dwelling needs a UDC permit, but that permit does not say whether the parcel allows the use¹. Off-grid sanitation is no workaround for a plumbed dwelling, since a nonplumbing system is limited to premises without indoor plumbing or running water¹³. We also could not confirm a minimum dwelling size. Give Clark County Planning, Zoning & Land Information the parcel number and proposed use, then ask the town about occupancy and local dimensional rules¹².

1. Identify the municipality and ask Clark County Planning, Zoning & Land Information which zoning, shoreland or floodplain approvals apply^2,12.
2. Confirm whether the municipality or Wisconsin DSPS issues the UDC permit and assigns the inspector¹.
3. Complete soil and site work and obtain the sanitary permit before installing a POWTS or a structure that needs one³.
4. File the county zoning or land-use application and request the current fee schedule^9,14.
5. Submit plans, required data and the fee to the UDC permit authority¹.
6. Get access approval; county-highway right-of-way work requires a Highway Department permit¹⁰.
7. Schedule building and septic inspections, then obtain the certificate of compliance where county zoning applies^1,7,9.

Verify septic feasibility, zoning jurisdiction, mapped floodplain or shoreland status, lot size and legal access before closing^2,3. Unincorporated lots generally need at least one acre, subject to municipal rules and stated exceptions⁵. A land division creating five or more parcels or building sites of ten acres or less is a subdivision, and no county land-use or sanitary permit can issue until the subdivision requirements are met⁵. Access easements and private roads generally must be at least three rods wide, the local accepting authority must approve the point of access, and a town board must approve easements serving more than two lots⁵. For a subdivision near public water, the furnishing municipality decides whether connection is feasible; where public water is unavailable, individual systems must meet Wisconsin DNR standards⁵. Get a parcel-specific soil evaluation, since only about 0.3% of county soils rate without severe limitations for a conventional drain field¹⁶.