New one- and two-family homes in Crawford County, Wisconsin need a Uniform Dwelling Code building permit, including stick-built, modular and manufactured-home installations.12 The building permit comes from the delegated municipality or, where none is delegated, through Wisconsin DSPS, not from a county building department.34 Crawford County itself issues septic (sanitary) permits and sets shoreland-wetland and floodplain zoning, while towns may add their own ordinances and cities and villages zone independently.567
At a glance
- Building permit
- Required for a new one- or two-family home, including modular and manufactured-home installations12
- Building inspections
- Required during construction; notify the inspector named on the UDC permit89
- Zoning
- No comprehensive county zoning, but county shoreland-wetland and floodplain districts apply in unincorporated areas1011
- Septic
- A county sanitary permit is required before construction on an unsewered property125
- Owner-builder
- An owner-occupant may apply without contractor certification, but permits and code requirements still apply1314
- RV or tiny home
- No rule on long-term RV or tiny-home living on an ordinary parcel could be confirmed; in a floodplain, RVs on site 180 days or more or not highway-ready must meet elevation and anchoring standards1516
- Shoreland setback
- Improvements near a navigable river or stream generally have a 75-foot setback, with site-work restrictions within 300 feet1718
- Shoreland lot size
- At least 10,000 square feet with sewer or 20,000 square feet without sewer; width and water frontage minimums also apply19
Who to call
Zoning
Crawford County Land Conservation, Planning & Zoning Department
County shoreland-wetland and floodplain zoning, sanitation permits, and parcel map review
Sanitation & Zoning - Suite 233 - 225 N Beaumont Rd., Prairie du Chien, WI 53821
Septic permits
Crawford County Land Conservation, Planning & Zoning Department
Sanitary permits, POWTS review, and septic-system inspection tracking
Sanitation & Zoning - Suite 233 - 225 N Beaumont Rd., Prairie du Chien, WI 53821
Building permits
Town clerks and UDC building inspectors
Town building permits, UDC inspections, and local driveway permits
Contact details are copied from each office’s official page and were checked against it on October 15, 2026.
Off-grid gear
Going off-grid in Crawford County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Crawford County, Wisconsin?
Yes. New one- and two-family dwellings in Crawford County require a Wisconsin Uniform Dwelling Code permit, including stick-built, modular and manufactured-home installations.12 Permit and inspection authority may rest with a delegated municipality; otherwise Wisconsin DSPS handles the application or appoints the inspector.34 Required inspections cover footings, foundation and reinforcement, rough construction, insulation and final completion; notify the inspector identified on the permit.89 An owner who is or will become an occupant may apply for construction or erosion-control permits without Dwelling Contractor certification, but that allowance does not waive the permit or code.1314 Occupancy follows a final inspection with no major health or safety violations, although only some municipalities issue a separate occupancy permit.20
Who issues Crawford County building permits, and how do you reach them?
Crawford County does not list one county building department for rural homes; the county directs applicants to local clerks for building and driveway permits and publishes a town UDC-inspector directory.21 Start with the clerk for the town containing the parcel and identify the current building inspector, site-permit process, driveway approval and fire-number requirement.2223 Contact Crawford County Land Conservation, Planning & Zoning at 608-326-0294 for county sanitation, shoreland and floodplain review.24 County fees include $500 for a standard in-ground, at-grade, mound or holding-tank sanitary permit, $125 for a shoreland permit, $200 for a floodplain permit and $600 for a zoning appeal, variance, special exception or conditional-use permit; late applications can cost double or triple the regular fee.25 Building-permit fees are set separately by the municipality.26
Does Crawford County have zoning?
Crawford County is not comprehensively zoned, but it administers shoreland-wetland and floodplain zoning in unincorporated areas.102711 Shoreland jurisdiction extends within 1,000 feet of a navigable lake, flowage or pond, or within 300 feet of a navigable stream or the landward side of its floodplain, whichever is greater.6 Improvements near a navigable river or stream generally have a 75-foot setback, and site-work restrictions extend within 300 feet; qualifying setback averaging may apply within the shoreland district.1718 A conforming shoreland lot needs at least 10,000 square feet, 65 feet of average width and 65 feet of water frontage if sewered, or 20,000 square feet, 100 feet of average width and 100 feet of water frontage if unsewered.19 A legally created shoreland lot below those minimums can still be built on if it was never reconfigured or combined and no structure sits partly on a neighboring lot; other undersized lots need a variance from the Board of Adjustment before a building permit issues.19 Outside the shoreland district, the county sets no countywide minimum lot size.19 Townships can add ordinances, while cities and villages administer their own rules.157 Inside the Village of Soldiers Grove, the village's own Chapter 225 sets zoning; septic permits there still follow the county's POWTS program.285 Building in a mapped floodplain requires an elevation certificate from a Wisconsin-licensed professional engineer or surveyor and a foundation and anchoring plan from a Wisconsin-licensed engineer or architect, and the county floodplain permit costs $200.2930
How do septic permits work in Crawford County?
Crawford County administers private onsite wastewater permits on unsewered property under county POWTS rules alongside Wisconsin requirements.5 A sanitary permit is required before construction, and a POWTS is required when water serves a habitable structure or plumbing fixtures are present.12 Start with county map review and town verification, then hire a certified soil tester; a plumber submits the sanitary-permit application for county review.22 Only 8.3% of Crawford County soils are rated without severe limits for a conventional drain field, so test before purchase and budget for a designed alternative where necessary.31 Non-plumbing sanitation systems and privies can follow a county sanitary-permit pathway, but each site still needs approval.3233 Every POWTS must be inspected by a licensed provider at least every 3 years.34
Can you live in an RV or tiny home in Crawford County?
We could not confirm a Crawford County rule authorizing long-term RV occupancy or temporary camping on an ordinary private parcel outside a floodplain; ask the county zoning office and the parcel's town, city or village before buying.2415 Inside a Crawford County floodplain, the rules are specific: a recreational vehicle on site for 180 consecutive days or more, or one that is not licensed and ready for highway use, must meet the floodfringe elevation and anchoring requirements.16 A vehicle counts as highway-ready only if it sits on its wheels or jacks, connects to the site by quick-disconnect utilities and has no permanently attached additions.16 In a floodplain campground, a camping unit may stay no more than 180 consecutive days before it must leave the floodplain for at least 24 hours, and a stay beyond 30 days needs written authorization from the campground operator.35 The county code does not use the term tiny home; a tiny home is treated this way only if it qualifies as an RV or camping unit (a camping unit is a portable shelter of no more than 400 square feet), so a tiny home on a permanent foundation falls under the building-permit and sanitary rules instead.363 We could not confirm a countywide minimum dwelling size.247 Manufactured-home installations used as new dwellings expressly require a UDC permit, but parcel-specific siting remains a local question.1 An off-grid plan does not avoid sanitation review: the county recognizes non-plumbing sanitary systems, yet requires a sanitary permit before construction and individual site approval.33
Building a home in Crawford County: the steps, in order
- Ask Crawford County Land Conservation, Planning & Zoning to map shoreland and floodplain jurisdiction and identify county approvals.624
- Ask the town clerk about local zoning, the site permit, driveway permit, fire number and current UDC inspector.2221
- If the site is unsewered, complete the soil evaluation and have a plumber obtain the sanitary permit before the new-home building permit.1222
- If using a private well, obtain the applicable well permit from the county or municipality.37
- Submit plans and prerequisites to the delegated municipality or Wisconsin DSPS, then wait for the UDC permit before starting.2
What should you check before buying land in Crawford County?
Check septic feasibility first because only 8.3% of county soils are rated without severe limits for a conventional drain field.31 Have the county map shoreland and floodplain jurisdiction, then ask the municipality about added zoning, driveway or land-division rules.6723 County subdivision and certified-survey-map review carries a 45-day review period and a $150 fee, and every lot must have 66 feet of frontage; shoreland lots have additional area, width and water-frontage minimums based on sewer service.3819 For a private well serving a UDC home, obtain the applicable county or municipal well permit rather than assuming the building permit covers it.37 A state-highway driveway needs a WisDOT connection permit.39 Crawford County's effective property-tax rate is about 1.6%, with a median annual bill of about $2,868.4041
Watch-outs
- A UDC building permit does not replace Crawford County sanitary, shoreland or floodplain approval, or a local driveway permit; floodplain building also needs an elevation certificate and an engineered foundation and anchoring plan.12329
- Crawford County requires the sanitary permit before construction on an unsewered property, and late county permits can carry double or triple fees.1225
- Long-term RV living and temporary camping outside floodplains, tiny-home occupancy and a countywide minimum dwelling size remain unconfirmed; ask the county zoning office and the parcel's municipality.2415
- An RV parked in a Crawford County floodplain for 180 consecutive days or more, or one not ready for highway use, must meet elevation and anchoring standards.16
Sources
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings), quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) - DSPS, quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) - DSPS, quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) - DSPS, quoted and re-checked
- Crawford County Sanitary Permit Application, quoted and re-checked
- Zoning, quoted and re-checked
- Official Website for Crawford County Wisconsin - Zoning, quoted and re-checked
- UDC Inspection Requirements - DSPS, quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) - DSPS, quoted and re-checked
- Official Website for Crawford County Wisconsin - Zoning, quoted and re-checked
- Zoning, quoted and re-checked
- Official Website for Crawford County Wisconsin - Sanitation, quoted and re-checked
- Instructions for Submitting a UDC Permit Application, quoted and re-checked
- Instructions for Submitting a UDC Permit Application - DSPS, quoted and re-checked
- Zoning, quoted and re-checked
- Crawford County Chapter 20 Floodplain Zoning Ordinance, quoted and re-checked
- Official Website for Crawford County Wisconsin - Zoning, quoted and re-checked
- Crawford County Chapter 16 Shoreland Protection Ordinance, quoted and re-checked
- Crawford County Shoreland Protection Ordinance, Chapter 16, quoted and re-checked
- Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
- Town clerks and UDC building inspectors (crawfordcountywi.gov)
- Permitting Process for POWTS, quoted and re-checked
- crawfordcountywi.gov, quoted and re-checked
- Crawford County Land Conservation, Planning & Zoning Department (crawfordcountywi.gov)
- Schedule of Fees: Sanitation & Zoning, quoted and re-checked
- Wisconsin Administrative Code SPS 302.34 (Wisconsin statewide rule), quoted and re-checked
- Official Website for Crawford County Wisconsin - Zoning, quoted and re-checked
- Village of Soldiers Grove: Chapter 225: Zoning - Village of Soldiers Grove, WI (Crawford County), quoted and re-checked
- Official Website for Crawford County Wisconsin - Zoning, quoted and re-checked
- Official Website for Crawford County Wisconsin - Zoning, quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Official Website for Crawford County Wisconsin - Sanitation, quoted and re-checked
- Official Website for Crawford County Wisconsin - Sanitation, quoted and re-checked
- Permitting Process for POWTS, quoted and re-checked
- Chapter 20 Floodplain Zoning Ordinance, quoted and re-checked
- Crawford County Code §20.43, Standards for Development in the Floodfringe, quoted and re-checked
- dsps.wi.gov, quoted and re-checked
- Subdivision, quoted and re-checked
- State highway connection permits (driveways & more) (Wisconsin statewide rule), quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written October 15, 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.