Bolthole Index

Buffalo County, Wisconsin

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

74Index Score / 100
#22 of 72 in Wisconsin

Buffalo County, Wisconsin requires a building permit for a new home or another structure meant for sleeping or living quarters1. New one- and two-family homes follow Wisconsin's statewide Uniform Dwelling Code, with inspections during construction and a final inspection before occupancy234. County sanitary and zoning permits come before the building permit5.

At a glance

Building permit
Required for a new home or other sleeping or living quarters1
Zoning
Varies by town; where county zoning applies, lot size and setbacks depend on the district678
Septic
Each private onsite system requires its own application and sanitary permit9
Owner-builder
An owner who occupies or will occupy the home may take out the construction and erosion-control permits10
RV or tiny-home living
RV rule unconfirmed; a tiny home without a well or septic may qualify as a recreational dwelling, limited to 3 months a year in ANR districts11
Minimum lot size
2 acres in ANR districts, 1 acre in Residential (0.25 with public sewer), where county zoning applies12
Conventional septic soils
About 8.6% of county soils avoid severe limits for a conventional drain field13
Private well
Wisconsin DNR permitting is handled by the licensed well driller for a new-home project14

Who to call

Building permits

Buffalo County Zoning Department

Zoning, addressing and county-highway driveway permits; coordinates the new-home sequence and directs applicants to the county's contracted UDC inspector

(608) 685-6218 Ext. 1

Buffalo County Courthouse, 4th Floor, 407 S. 2nd St, Alma, WI 54610

Septic permits

Buffalo County Zoning Department (POWTS)

Sanitary permit applications, POWTS inspections, maintenance tracking and sanitary-permit fee payments

(608) 685-6218 Ext. 1

Buffalo County Courthouse, 4th Floor, 407 S. 2nd St, Alma, WI 54610

Online permits →

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

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Do you need a building permit in Buffalo County, Wisconsin?

Yes. Buffalo County requires permits for a new home and for another structure intended as sleeping or living quarters1. New one- and two-family dwellings follow Wisconsin's statewide Uniform Dwelling Code; detached garages and accessory buildings are outside that code's coverage2. Construction starts only after plans are approved and the building permit has been issued and posted15.

The county's sequence matters: complete the soil test, driveway approval, address assignment, sanitary permit and zoning permit before the state building permit5. Complete applications are reviewed within 30 days, and typical zoning review takes 1–2 weeks1. Buffalo County requires inspection of each construction phase before the work is covered3.

Who is the Buffalo County building department, and how do you reach it?

Start with the Buffalo County Zoning Department at the Buffalo County Courthouse in Alma for the local pieces of a new-home project16. The office handles zoning, address applications and driveway permits for access entering a county highway, then directs applicants to the county's contracted Uniform Dwelling Code inspector16.

Secure the sanitary and zoning permits before applying for the building permit16. Building-permit fees vary with the issuing jurisdiction, while Buffalo County publishes separate sanitary-permit and POWTS service fees1718. An owner who occupies or will occupy the home may take out the construction and erosion-control permits, but plumbing and electrical work remain subject to applicable licensed-professional rules10.

Does Buffalo County have zoning?

Zoning varies by location in Buffalo County. The county ordinance applies outside cities and villages only after the applicable town approves it; the towns of Montana and Waumandee are not zoned, although other county ordinances remain in effect there6. Confirm the municipality, town and zoning district before evaluating a parcel6.

Where county zoning applies, the minimum lot area is 2 acres in the ANR-40, ANR-20, ANR-10 and ANR-5 districts, and 1 acre in the Residential district, reduced to 0.25 acres with public sewer12. Lot width or road frontage is 100 feet in ANR-40, ANR-20 and ANR-10, and 75 feet in ANR-5 and Residential12. Side and rear setbacks are 20 and 40 feet in ANR-40, ANR-20 and ANR-10, 10 and 20 feet in ANR-5, and 10 and 10 feet in Residential, and a structure must also stay back at least its own height from property lines and State, County and Town highways, whichever is greater19. Buildings cannot exceed 35 feet in height by default, and residential accessory structures are capped at 24 feet20. Accessory dwellings are allowed in specified Commercial, Industrial, ANR and Residential districts, subject to size, occupancy, rental, separation, zoning and sanitary conditions21.

How do septic permits work in Buffalo County?

Each private onsite wastewater treatment system in Buffalo County requires a separate application and sanitary permit, and the permit must be in hand before installing the system or building a structure that requires one9. A proposed non-plumbing sanitation system also needs a Buffalo County sanitary permit before construction where that type of system may be used9. The Zoning Department administers these permits, and the county tells applicants to connect with a licensed plumber early because the plumber applies and sanitary review can be the longest part of the sequence2216.

Buffalo County publishes sanitary-permit fees of $400 for a conventional system, $550 for a pressurized system and $500 for a holding tank18. Only state-owned systems go to the Wisconsin Department of Safety and Professional Services; a private landowner applies to the county23. The same office schedules POWTS inspections and asks for one full business day's notice24. Only about 8.6% of Buffalo County soils avoid severe limitations for a conventional septic drain field, so complete the soil and site evaluation before finalizing the home site13.

Can you live in an RV or tiny home on your land in Buffalo County?

We could not confirm a complete county rule for living in an RV on private land. Buffalo County has comprehensive zoning in unincorporated areas, so ask the Zoning Department whether the parcel's district allows the proposed dwelling or temporary occupancy before buying or moving a unit onto the land25.

Tiny homes have no separate category in the county ordinance, so classification depends on how the structure is built and served11. A structure that is not served by a well or private onsite wastewater system can qualify as a recreational dwelling, a permitted use in Agriculture/Natural Resource districts, limited to one per lot (a second needs a Conditional Use Permit) and to no more than 3 months of occupancy per calendar year11. Occupied longer, it is treated as a single-family dwelling and must meet dwelling-density rules11.

A manufactured home has a defined route: outside a permitted community, the county allows one per lot with a zoning permit, compliance with district standards and a qualifying enclosed concrete foundation26. We could not confirm a countywide minimum dwelling size, so ask the Zoning Department how it classifies the proposed structure16.

Building a home in Buffalo County: the steps, in order

  1. Identify the parcel's municipality and town, then ask the Buffalo County Zoning Department whether county zoning applies and which district, lot-area and setback standards govern678.
  2. Complete the soil and site evaluation, then settle driveway access with the town, county or WisDOT, and obtain the address number2728.
  3. Have the plumber apply for a separate sanitary permit for each private onsite system; the sanitary permit must precede the building permit916.
  4. Stake the building site and obtain any required county zoning permit56.
  5. Have a licensed well driller obtain the Wisconsin DNR permit if the new home needs a private well14.
  6. Submit the required forms, fees, plans and prerequisite approvals for UDC review; Wisconsin requires at least two plan sets29.
  7. Start work after the permit is issued and posted, and schedule each phase inspection before covering work153.
  8. Occupy the dwelling after a final inspection finds no major health or safety violations; a certificate is not stated as universally required4.

What should you check before buying land in Buffalo County?

Put septic feasibility near the top of due diligence because only about 8.6% of county soils avoid severe limitations for a conventional drain field13. Confirm that the parcel meets its district's minimum lot area and leaves a workable building envelope after district-specific setbacks; sewer service and shoreland location can change the lot standard87.

Check flood and shoreland status before choosing that envelope because Wisconsin restricts floodway development and Buffalo County's shoreland rules generally use a 75-foot setback from the ordinary high-water mark, subject to stated exceptions or reductions307. A driveway permit must be issued before the address: the town handles town-road driveways, Buffalo County issues permits for driveways entering a county highway, and state highways go through WisDOT28. The county zoning ordinance also limits a driveway to a 12% grade28. If a seller is dividing land, ask whether Buffalo County's subdivision rules apply; they cover certain divisions creating five or more parcels or building sites of 1.5 acres or less, including specified successive divisions within five years31.

Watch-outs

  • County zoning varies by town: Montana and Waumandee are not zoned, but other county ordinances remain in effect there6.
  • Do not assume acreage alone makes a parcel buildable: minimum lot area and setbacks depend on the district, sewer service and possible shoreland rules87.
  • Each private onsite wastewater system needs its own sanitary permit before installation or construction of the structure it will serve9.
  • We could not confirm private-land RV occupancy or a countywide minimum dwelling size; a tiny home that has no well or septic system and is occupied more than 3 months a year is treated as a single-family dwelling1116.

Sources

  1. New Home Construction, quoted and re-checked
  2. Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  3. New Home Construction, quoted and re-checked
  4. Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  5. New Home Construction (2026 county census)
  6. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  7. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  8. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  9. Buffalo County Sanitary Ordinance, quoted and re-checked
  10. Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  11. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  12. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  13. 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
  14. New Home Construction, quoted and re-checked
  15. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
  16. Buffalo County Zoning Department (buffalocountywi.gov)
  17. Wisconsin Administrative Code SPS 302.34 (Wisconsin statewide rule), quoted and re-checked
  18. buffalocountywi.gov, quoted and re-checked
  19. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  20. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  21. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  22. For Plumbers & Pumpers - Buffalo County Government (2026 county census)
  23. State Sanitary Permit Application - Buffalo County, quoted and re-checked
  24. Buffalo County Zoning Department (POWTS) (buffalocountywi.gov)
  25. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  26. Buffalo County Zoning Ordinance Revision – Adopted 7/23/2018, quoted and re-checked
  27. New Home Construction, quoted and re-checked
  28. New Home Construction, quoted and re-checked
  29. Wisconsin Administrative Code SPS 320.09 (Wisconsin statewide rule), quoted and re-checked
  30. Floodplain Development Basics (Wisconsin statewide rule), quoted and re-checked
  31. Buffalo County Subdivision Ordinance, quoted and re-checked

Written October 9, 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.

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Compared with neighboring counties

Like all 6 of its neighbors, Buffalo County requires a building permit for a home.

RuleBuffalo CountyTrempealeau CountyPepin CountyEau Claire CountyLa Crosse CountyPierce CountyDunn County
Building permitRequiredRequiredRequiredRequiredRequiredRequiredRequired
County zoningYesYesNoYesYesYesYes
Septic permitsCounty Land ManagementCounty Dept. of Land ManagementCounty Land Conservation & Planning Dept.County Health Dept.County ZoningCounty Land ManagementCounty Env. Services

County locator

Buffalo County in Wisconsin

74
County map
Buffalo County highlighted among the Wisconsin counties · colored by Index score

How Buffalo County scores

Seclusion60100% ev.
Self-Sufficiency63100% ev.
Admin Boringness44100% ev.
Durability72100% ev.
Property Autonomy70100% ev.
Carry Cost66100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$259kTypical home
1.4%Property tax
$5,134Land / acre
35.5"Annual rain
5.6% of yrsSevere drought
1.9 / yr (+1.8)Mid-century 100°F days
14.6 daysMid-century dry spell
1.71" (+9.7%)Mid-century 1-day rain
1.74×Wildfire change factor
100%Forward climate coverage
$1,277Home insurance / yr
2.8% / yrInsurance growth
0.47%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
28,869People within 30 min
1,088,758People within 2 hr
16,910Radius comparison (15 mi)
19.9People / sq mi
2.5%Federal land
42.4%Land at 15% slope or less
8.6%Soils rated "not limited" for septic (strict USDA rating)
35,148 acWorkable land screen
47%Wooded land
55.7 tonsBiomass / forest ac
45.4°FAvg temp

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Cities and towns in Buffalo County

Inside a city, town or township here, that government usually sets zoning and may issue its own building permits; the county’s rules above cover land outside them.

Alma · Town of Alma · Town of Belvidere · Town of Buffalo · Buffalo City · Town of Canton · Village of Cochrane · Town of Cross · Town of Dover · Fountain City · Town of Gilmanton · Town of Glencoe · Town of Lincoln · Town of Maxville · Town of Milton · Town of Modena · Mondovi · Town of Mondovi · Town of Montana · Town of Naples · Town of Nelson · Village of Nelson · Town of Waumandee

Answers from the rulebook for Buffalo County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Buffalo County rules

  • Building permitRequired

    New homes and other structures intended to serve as sleeping or living quarters.

    • The listed sequence includes soil testing, driveway approval, address numbering, sanitary and zoning permits before the state building permit.
    • Permits are reviewed within 30 days of a complete application; the county states typical zoning review is 1-2 weeks.

    complete-application review period: <= 30 days

    “required for the construction of a new home”
  • County-wide zoningPresent (with conditions)

    Buffalo County comprehensive zoning in unincorporated areas.

    • The ordinance identifies zoning districts for unincorporated areas; incorporated municipalities may have separate authority.
    • The ordinance was adopted July 23, 2018.
    “unincorporated areas of Buffalo County are divided”
  • Local zoningVaries (with conditions)

    County aggregate of zoning coverage in Buffalo County, including county zoning in unincorporated areas and variation by town approval; incorporated cities and villages are outside the cited county ordinance.

    • The ordinance applies outside incorporated cities and villages subject to Town approval.
    • The ordinance takes effect in a town only after approval by the applicable Town Board and filing of a certified approving resolution.
    • The towns of Montana and Waumandee are not zoned; other county ordinances remain in effect there.
    “The towns of Montana and Waumandee are not zoned; however all other county ordinances remain in effect.”
  • Minimum lot sizeDistrict specific (with conditions)

    Lots in areas subject to Buffalo County comprehensive zoning and shoreland zoning requirements.

    • Comprehensive zoning table minimum lot areas are 2 acres in ANR-40, ANR-20, ANR-10, ANR-5, and ANRT-5; 1 acre in Residential, Commercial, and Industrial districts when unsewered, reduced to .25 acres when served by public sewer; and 1 acre in Conservation.
    • For lots of record, the ordinance provides a minimum of 20,000 square feet without public sewer and 10,000 square feet with public sewer, subject to the ordinance's lot-of-record conditions.
    • In shoreland areas, minimum lot area is 10,000 square feet for sewered lots and 20,000 square feet for unsewered lots; shoreland width requirements also apply.

    ANR-40, ANR-20, ANR-10, ANR-5, ANRT-5 minimum lot area: 2 acres · Residential, Commercial, Industrial minimum lot area without public sewer: 1 acre (Residential and Commercial table entries also specify .25 acres if served by public sewer; Industrial likewise specifies .25 acres if served by public sewer.) · Residential, Commercial, Industrial minimum lot area with public sewer: 0.25 acre · Conservation minimum lot area: 1 acre · Shoreland sewered minimum lot area: 10000 square feet (Minimum average lot width is 65 feet.) · Shoreland unsewered minimum lot area: 20000 square feet (Minimum average lot width is 100 feet and at least 100 feet frontage at the ordinary high-water mark.)

    “Residential (R) 1 acre, .25 acres if served by public sewer”
    One more reviewed finding on this topic
    • Specified — Lots and building sites in Buffalo County zoning districts where the comprehensive zoning ordinance is in effect
      “Minimum lot size for a Lot of Record shall be 20,000 square feet for lots without public sewer, and 10,000 square feet for lots with public sewer.”
  • SetbacksDistrict specific (with conditions)

    Structures in areas subject to the Buffalo County comprehensive zoning ordinance, with additional shoreland rules where applicable.

    • Agricultural, Commercial, and Industrial districts require the greater of the structure height or the table setback from property lines and State, County, and Town highways.
    • The table specifies district-dependent side and rear setbacks, including ANR-40/20/10: 20-foot side and 40-foot rear; ANR-5 and ANRT-5: 10-foot side and 20-foot rear; Residential: 10-foot side and 10-foot rear; Commercial: 10-foot side and 10-foot rear, with additional 20-foot and 40-foot separations from residential lots; Industrial: 20-foot side and 20-foot rear, with additional 40-foot separation from residential lots; Conservation: 10-foot side and 10-foot rear.
    • In shoreland areas, the default setback is 75 feet from the ordinary high-water mark, subject to stated exemptions and reductions; a reduced principal-structure setback may not be less than 35 feet where the ordinance conditions are met.

    shoreland building setback: 75 feet (Unless exempt under Section 752.18.02 or reduced under Section 752.18.03; reduced principal structure setback may not be less than 35 feet.)

    “In all Agricultural, Commercial and Industrial Zoning Districts all structures are required to be setback, a minimum, the height of the structure or the setback distance listed in the table above, whichever is greater, from the property lines and from all State, County and Town Highways.”
    One more reviewed finding on this topic
    • Specified — Structures in Buffalo County zoning districts where the comprehensive zoning ordinance is in effect
      “In all Agricultural, Commercial and Industrial Zoning Districts all structures are required to be setback, a minimum, the height of the structure or the setback distance listed in the table above, whichever is greater, from the property lines and from all State, County and Town Highways.”
  • Building heightSpecified

    Buildings, structures, and signs governed by the Buffalo County Zoning Ordinance in applicable unincorporated areas.

    • Default maximum is 35 feet.
    • Accessory structures in the Residential zoning district may not exceed 24 feet.
    • Processing structures for permitted nonmetallic mines may not exceed 75 feet.
    • Architectural projections are exempt, subject to cupola limits of 100 square feet, 10 feet above the adjacent roof ridge, and no living quarters.
    • Agricultural structures are exempt if Section 3.A setback requirements are met.
    • Special structures may not exceed their distance from the nearest lot line.
    • Public or semi-public facilities may receive a Board of Adjustments variance up to 75 feet, with setbacks increased by at least one foot for each foot above 35 feet.
    • Industrial buildings may receive a Board of Adjustments variance up to 75 feet if Section 3.A setback requirements are met.

    default maximum height: 35 feet · residential accessory structure maximum: 24 feet · permitted nonmetallic mine processing structure maximum: 75 feet · public or semi-public facility variance maximum: 75 feet (Board of Adjustments variance and increased setbacks) · industrial building variance maximum: 75 feet (Board of Adjustments variance and Section 3.A setbacks)

    “Except as provided in subs. B, no building, structure or sign shall exceed 35 feet in height, ‘height’ as determined in the ‘Structure Height’ definition. Accessory structures in the Residential zoning district may not exceed 24 feet in height. Processing structures for permitted nonmetallic mines may not exceed 75 feet in height.”
  • Tiny homesLimited

    A structure marketed as a tiny home that meets Buffalo County's definition of a recreational dwelling and is located in an applicable Agriculture/Natural Resource zoning district

    • The ordinance contains no separate definition for or reference to a tiny home; classification therefore depends on the structure's physical and servicing characteristics.
    • A recreational dwelling is not served by a well or private onsite wastewater treatment system.
    • Recreational dwellings are permitted in Agriculture/Natural Resource zoning districts.
    • One recreational dwelling is permitted per lot; one additional recreational dwelling requires a Conditional Use Permit.
    • Occupancy is limited to no more than three months out of the calendar year.
    • If occupied more than three months in a calendar year, it is considered a single-family dwelling and must comply with dwelling-density regulations.
    • A zoning permit and uniform address number are required.
    • A recreational dwelling must have at least a non-plumbing waste treatment system meeting the Buffalo County Sanitary Ordinance.

    maximum occupancy duration: <= 3 months per calendar year (If occupied more than three months, it is considered a single-family dwelling.)

    “Recreational dwellings are a permitted use in all Agriculture/Natural Resource zoning districts. [...] Recreational dwellings may not be occupied for more than three (3) months out of the calendar year. Recreational dwellings occupied more than three (3) months out of a calendar year will be considered a single family dwelling and shall comply with the dwelling density regulations and limitations of this Ordinance.”
  • Manufactured homesAllowed (with conditions)

    Manufactured homes outside permitted manufactured-home communities.

    • One manufactured home is permitted per lot.
    • The home must comply with zoning-district setback, area, and other requirements.
    • A zoning permit is required for siting or replacement.
    • Outside a permitted community, the home must be placed on a completely enclosed concrete foundation meeting the ordinance requirements.

    manufactured homes per lot: 1 home (manufactured-home communities are separately regulated)

    “One manufactured home is permitted per lot”
  • Accessory dwellingsAllowed (with conditions)

    Accessory dwellings in the county zoning districts identified by the ordinance.

    • Accessory dwellings are permitted in Commercial, Industrial, ANR-20, ANR-10, ANR-5, and Residential districts.
    • Commercial and Industrial accessory dwellings require an active business and occupancy by the business owner or employee.
    • ANR and Residential accessory dwellings may not exceed one-half of the principal dwelling's area or 1,000 square feet, may not be rented, require owner occupancy of the principal dwelling, and must be at least 100 feet from neighboring dwellings.
    • A zoning permit and sanitary ordinance compliance are required.

    maximum accessory-dwelling area: one-half of principal dwelling or 1,000 square feet · minimum distance from neighboring dwellings: >= 100 feet

    “Accessory Dwellings are permitted in the Commercial and Industrial zoning districts, in the ANR 20, 10 & 5 zoning districts, and in the Residential zoning district.”
  • Who permits septicCounty (with conditions)

    POWTS projects for which Buffalo County is the appropriate governmental unit, including county sanitary-permit processing and POWTS inspections.

    • A sanitary permit is conditional on an approved plan review.
    • The Buffalo County page lists conventional, pressurized, holding-tank, transfer/renewal/revision, non-plumbing/modification/reconnect, soil-evaluation, and pumping-notice fees.
    • The county page requires one full business day of notice for POWTS inspections.
    • State-owned POWTS are submitted to the Wisconsin Department of Safety and Professional Services.

    conventional system fee: 400 USD · pressurized system fee: 550 USD · holding tank fee: 500 USD · transfer/renewal/revision fee: 150 USD · non-plumbing/modification/reconnect fee: 125 USD · soils and site evaluation filing fee: 75 USD · pumping notice and tracking fee: 10 USD/year/system

    “Please email [email protected] or call zoning at (608) 685-6218 for POWTS inspections. There must be a 1 full business day notice for all inspections.”
  • Septic permitRequired

    Private onsite wastewater treatment systems and non-plumbing sanitation systems serving structures in Buffalo County.

    • Each POWTS requires a separate application and sanitary permit.
    • A state sanitary permit is required before installation, establishment, or construction of a structure requiring a POWTS.
    • Where a non-plumbing sanitation system may be used and is proposed, the owner must obtain a Buffalo County sanitary permit before construction.
    • Construction before obtaining the applicable state or county permit violates the ordinance.
    • State and Buffalo County sanitary permits are valid for two years and may be renewed for an additional two years if renewal is approved before expiration.
    “(1) Each POWTS shall require a separate application and sanitary permit.”
  • Agricultural exemptionConditional

    Agricultural structures subject to Buffalo County zoning height requirements.

    • The exemption applies to height requirements only.
    • Setback requirements in Chapter 8, Section 3, A must still be met.
    “Agricultural Structures [...] are exempt”
  • Subdividing landRegulated (with conditions)

    Subdivisions in Buffalo County, including divisions meeting the ordinance definition.

    • A subdivision includes divisions creating five or more parcels or building sites of 1.5 acres or less, or successive divisions within five years as stated.
    • Exclusions include wills, court orders, certain leases, mortgages, easements, and certain exchanges between adjoining owners.

    subdivision threshold: 5 or more parcels or building sites of 1.5 acres each or less (successive division within a five-year period also covered)

    “creates five (5) or more parcels or building sites”
  • Driveway accessRequired

    Driveway access for new construction in Buffalo County.

    • A driveway permit must be issued before receiving an address.
    • Town-road driveways are handled by the town; county-road driveways require a Buffalo County permit; state-highway driveways are handled by WisDOT.
    • No part of the driveway may exceed 12% grade under the county zoning ordinance.

    maximum driveway grade: <= 12 percent

    “Prior to receiving an address, a driveway permit must be issued by the appropriate entity. If your proposed driveway is located on a town road, contact your town’s chairperson or supervisor. A Buffalo County Driveway Permit is required for any driveway entering a county highway. For proposed driveways located on a state highway, please contact Jill Proud- WI DOT at (715) 836-3905 or [email protected].”
  • Permit feesPublished (with conditions)

    Buffalo County sanitary permit fees and related POWTS fees administered by the County Zoning Department.

    • Fees differ by permit or service type.
    • The official page also provides an online payment link and application forms.

    conventional system: 400 USD · pressurized system: 550 USD · holding tank: 500 USD · transfer/renewal/revision: 150 USD · non-plumbing/modification/reconnect: 125 USD · soils and site evaluation filing fee: 75 USD · pumping notice and tracking fee: per 10 USD/year/system

    “Conventional System $400 Pressurized Systems $550 Holding Tank $500 Transfer/Renewal/Revision $150 Non-Plumbing/Modification/Reconnect $125 Soils and Site Evaluation Filing Fee $75 Pumping Notice and Tracking Fee $10/year/system”
  • Permit processPublished (with conditions)

    Published Buffalo County permit process for construction of a new home or other structure intended to serve as sleeping or living quarters in unincorporated Buffalo County areas administered by the County.

    • The listed process requires a soil test, driveway approval, new address number, sanitary permit, zoning permit, and state building permit under the Uniform Dwelling Code.
    • The Buffalo County zoning permit application applies to all unincorporated areas excluding the towns of Montana and Waumandee.
    • Permits are reviewed within 30 days of receiving a complete application; the Zoning Department typically completes its review in 1-2 weeks.
    • A sanitary permit is required before issuance of the state building permit.
    • After sanitary and zoning permits are obtained, the applicant may apply for the state building permit.
    • Driveway approval depends on the road authority: town roads require contact with the town, county highways require a Buffalo County driveway permit, and state highways require Wisconsin DOT approval.

    complete-application review period: <= 30 days · typical zoning review period: 1-2 weeks

    “The following items are required for the construction of a new home, or any other structure intended to serve as sleeping/living quarters: 1. Soil Test 2. Driveway Approval 3. New Address Number 4. Sanitary Permit 5. Zoning Permit 6. State Building Permit (Uniform Dwelling Code) [...] Permits will be reviewed within 30 days of receiving a complete application. At this time the Zoning Department is typically completing the review process in 1-2 weeks.”

Wisconsin rules that apply here

  • Owner-builder exemptionConditional

    An owner obtaining construction and erosion-control permits for a dwelling covered by the Wisconsin Uniform Dwelling Code.

    • The owner must occupy the home currently or will occupy it after completion.
    • The exemption permits the owner to take out the construction and erosion-control permits without the state-certified Dwelling Contractor and Dwelling Contractor Qualifier arrangement described for contractors.
    • The owner-occupancy statement must be checked on the permit application if the applicant does not possess Dwelling Contractor certification.
    • The source describes an owner-occupancy condition; it does not establish a general exemption for non-occupant owners.
    “The construction and erosion control permits must be taken out by a state-certified Dwelling Contractor, who also employs a state-certified Dwelling Contractor Qualifier, or by the owner who occupies the home currently or will after completion.”
    One more reviewed finding on this topic
    • Available (with conditions) — Owner-occupants constructing a UDC-covered dwelling in Buffalo County.
      “The construction and erosion control permits must be taken out by a state-certified Dwelling Contractor, who also employs a state-certified Dwelling Contractor Qualifier, or by the owner who occupies the home currently or will after completion.”
  • Building code adoptedAdopted (with conditions)

    Public buildings, places of employment, and multifamily buildings subject to Wisconsin's commercial building code.

    • The Division of Industry Services reviews plans before construction for compliance with state statutes and building codes.
    • Local certified municipalities may provide plan review and inspection services for certain building types.
    • The Wisconsin Commercial Building Code adopted the 2021 ICC effective September 1, 2025; plans submitted November 1, 2025 or later must comply with the updated code.
    • Municipalities may have grandfathered fire detection, prevention, and suppression ordinances under 2013 Act 270.

    2021 ICC adoption date: September 1, 2025 (The deadline for building plan compliance was delayed.) · updated-code plan-submission deadline: November 1, 2025 (Plans submitted on or after this date must comply with the updated Commercial Building Code.)

    “2013 Act 270 establishes a uniform commercial building code in Wisconsin while allowing municipalities to grandfather fire detection, prevention, and suppression ordinances”
    4 more reviewed findings on this topic
    • Adopted (with conditions) — New one- and two-family dwellings in Buffalo County.
      “The statewide code for new homes in Wisconsin is the Uniform Dwelling Code (UDC), SPS 320-325 of the Wisconsin Administrative Code and its adopted references. It is a uniform building code that applies across the state. Municipalities may not adopt a more or less stringent code.”
    • Adopted (with conditions) — New one- and two-family dwellings in Wisconsin built since June 1, 1980.
      “The Uniform Dwelling Code (UDC) is the statewide building code for one- and two-family dwellings built since June 1, 1980.”
    • Adopted (with conditions) — New Wisconsin one- and two-family dwelling construction, including stick-built, modular, and manufactured home installations
      “A permit under the UDC is required for new one- and two-family dwelling units. This includes stick-built, modular, and manufactured home installations.”
    • Adopted — Wisconsin's Uniform Dwelling Code, chapters SPS 320-325, for new one- and two-family dwelling units, including stick-built, modular, and manufactured home installations.
      “SPS 320-325 Uniform Dwelling Code (UDC), construction standard for 1-2 family dwelling units, applies uniformly statewide”
  • InspectionsRequired

    Each phase of construction of a one- or two-family dwelling governed by the Wisconsin Uniform Dwelling Code.

    • Inspections are called for before each phase is covered up.
    • The local inspector’s instructions apply.
    • The inspector has two business days after the inspection request and the work being ready to inspect before the work may be covered.
    • Inspections check compliance with the code and may also check compliance with approved plans.
    • The UDC is enforced by municipal or county building inspection departments or the Wisconsin Division of Industry Services.

    inspection response period: 2 business days (After the inspection request and the work is ready to inspect, before the work may be covered up.)

    “Call for inspections of each phase of construction prior to covering it up - check the local inspector’s instructions. The inspector has two business days after the date that you make the inspection request and the work is ready to inspect, before you may cover up the work. Inspectors will check for compliance with the code.”
    One more reviewed finding on this topic
    • Required — UDC-covered construction in Buffalo County.
      “inspections of each phase of construction”
  • Certificate of occupancyLimited

    Occupancy of UDC-covered dwellings.

    • Occupancy follows a final inspection with no major health or safety violations.
    • Some municipalities issue occupancy permits; the state brochure does not make a certificate universally required.
    • The dwelling exterior must be completed within two years after permit issuance.

    exterior-completion deadline: 2 years after permit issuance

    “Take occupancy after receiving a final inspection”
    One more reviewed finding on this topic
    • Limited — Occupancy of a dwelling governed by Wisconsin’s Uniform Dwelling Code after construction.
      “Take occupancy after receiving a final inspection in which no major health or safety violations are found. (Some municipalities will issue occupancy permits.) Also, the dwelling’s exterior must be completed within two years after permit issuance.”
  • Zoning districtsPartial

    Statewide floodplain zoning guidance; the Wisconsin DNR publishes a model floodplain ordinance for communities but does not thereby establish every local zoning district.

    • The source describes a model ordinance that communities should use when amending, repealing, or recreating a floodplain ordinance.
    • The source does not provide a statewide inventory or complete publication of local zoning districts.
    • Local community adoption and local ordinance details remain necessary.
    “This is the model version that should be used by any community amending or repealing and recreating a floodplain ordinance.”
  • Lot coverageSpecified

    Impervious-surface coverage in the statewide shoreland framework and the DNR county model ordinance for qualifying shoreland lots or parcels.

    • The general standard applies to construction, reconstruction, expansion, replacement, or relocation of impervious surfaces within 300 feet of the ordinary high-water mark on riparian lots and parcels entirely within 300 feet of the ordinary high-water mark.
    • The general standard is 15 percent.
    • A lot or parcel may exceed 15 percent but not exceed 30 percent with a permit and mitigation plan.
    • For highly developed shorelines, counties are not required to adopt the special standards; if adopted, residential coverage may exceed 30 percent but not exceed 40 percent with a mitigation plan.
    • Treated impervious surfaces and defined roadways and sidewalks may be excluded from calculation when the ordinance conditions are met.

    general impervious-surface limit: <= 15 percent of lot or parcel · maximum under general standard with mitigation: 30 percent of lot or parcel (permit and mitigation plan required) · highly developed shoreline residential maximum: 40 percent of lot or parcel (special standard adopted and mitigation plan required)

    “The percentage of impervious surface allowed on a lot or parcel described under section 11.2 and as calculated under section 11.3 shall not exceed 15%.”
  • Septic inspectionRequired

    Privately owned wastewater treatment systems and septic systems statewide in Wisconsin.

    • Systems must be visually inspected at least once every three years.
    • Anaerobic treatment tanks must be serviced when combined sludge and scum volume reaches one-third of tank volume.
    • Counties, acting as state agents, operate maintenance-tracking programs and send reminders to landowners.

    visual inspection interval: <= 3 years · combined sludge and scum service threshold: >= 33.333333 percent of tank volume (One-third of tank volume.)

    “The code only requires that systems shall be visually inspected at least once every 3 years.”
  • Off-grid sanitationLimited

    Sanitation for buildings with plumbing fixtures that are not connected to a public sewer in Wisconsin.

    • Off-grid wastewater handling must provide for treating, recycling, dispersing, or holding wastewater.
    • Private onsite wastewater treatment systems remain subject to Wisconsin POWTS requirements and applicable plan review or permits.
    • The rule does not establish unrestricted approval for any particular composting toilet, privy, holding tank, or other device.
    “Where plumbing fixtures exist in a building that is not connected to a public sewer system, suitable provision shall be made for treating, recycling, dispersing or holding the wastewater.”
  • Well permitLimited

    Construction of private wells statewide in Wisconsin.

    • A Well Construction Notification Number must be obtained before constructing a new private well that is not a high-capacity well.
    • Exceptions to the notification requirement include high-capacity wells, reconstruction of existing wells, and wells on Native American property; high-capacity wells or other wells requiring written DNR approval follow the approval requirements.
    • Some DNR-approved county ordinances additionally require a well permit before construction.
    • A Well Construction Report must be submitted to DNR within 30 days after construction.

    well construction notification fee: 50.5 USD (Fee and notification number are not refundable or transferable.) · well construction report deadline: 30 days after construction

    “Wisconsin law requires that a property owner provide advance notice to DNR before construction of any new private well that is not a high capacity well, and advance notice of any heat exchange drillhole construction (geothermal system) that does not require a written DNR approval.”
    One more reviewed finding on this topic
    • Required — Private wells for new homes in Buffalo County.
      “Wells are permitted by the WI DNR. A licensed well-driller will obtain the necessary permit for your project.”
  • Mandatory utility hookupWater and sewer (with conditions)

    Pre-installation water and sewer systems in a manufactured/mobile home park in Wisconsin.

    • Pre-installation plumbing-system plan review is required.
    • Submitted plans must comply with the Wisconsin Plumbing Code.
    • A conditional approval letter gives permission to start construction.
    • Local permitting requirements remain pending.
    “Pre-installation plan review of the water and sewer systems in a manufactured/mobile home park is required as a plumbing system plan review via esla.wi.gov.”
  • Building in a floodplainLimited

    Development in Wisconsin floodplains, including floodway and floodfringe areas.

    • Floodplain development typically requires a land use permit and a building permit.
    • In the floodway, new structures, substantially improved or damaged structures, hazardous or solid-waste storage, and wells or sewage systems are prohibited.
    • Floodway development is limited to open-space uses with low flood-damage potential unless the stated analysis or FEMA map-revision condition is met.
    • Floodfringe structures must have the first floor elevated two feet above base flood elevation and have dryland access.
    • Substantially damaged structures are subject to the stated 50-percent threshold and applicable elevation or relocation requirements.

    floodfringe first-floor elevation: >= 2 feet above base flood elevation (for all new and substantially damaged or improved structures in the floodfringe)

    “In the floodway, new structures, substantially improved or damaged structures, the storage of hazardous/solid waste and wells/sewage systems are prohibited.”
    One more reviewed finding on this topic
    • Limited — Development within floodplain areas regulated by a Wisconsin community floodplain zoning ordinance based on the DNR model and state minimum standards.
      “A land use permit shall be obtained before any development; repair, modification, or addition to an existing structure; or change in the use of a building or structure, including sewer and water facilities, may be initiated.”
  • Short-term rentalsLimited

    Lodging rented to tourists or transients for short periods in Wisconsin, including homes, condos, cabins, cottages, and similar lodging facilities.

    • A DATCP lodging permit is required for all lodging facilities in Wisconsin.
    • A tourist or transient must be away from the person's permanent address.
    • The reviewed source does not establish local zoning or municipal operating restrictions.
    “If lodging is rented to a tourist or transient, it will require a permit.”
  • Campground & park staysLimited

    Recreational trailers, pickup truck campers, and motor homes occupying campsites in Wisconsin State Park System family campgrounds.

    • Camping reservations are required before setting up on any site.
    • A campsite may contain no more than one recreation trailer, pickup truck camper, or motor home.
    • No person may camp or leave a camping unit in a family campground for more than 14 days in any 21 days.
    • Pickup campers or motor homes pulling a trailer are treated as a single unit.

    maximum camping-unit occupancy per campsite: 1 recreation trailer, pickup truck camper, or motor home (Pickup campers or motor homes pulling a trailer are treated as a single unit.) · maximum stay: 14 days in any 21 days

    “A campsite may be occupied by no more than one recreation trailer, pickup truck camper or motor home. Pickup campers or motor homes pulling a trailer are treated as a single unit. [...] No one may camp or leave a camping unit in a family campground for more than 14 days in any 21 days.”
    3 more reviewed findings on this topic
    • Limited — Occupancy of recreational vehicles, including recreation trailers, pickup truck campers, motor homes, camper vans, and truck campers, at Wisconsin State Park System campsites.
      “A campsite may be occupied by no more than one recreation trailer, pickup truck camper or motor home. Pickup campers or motor homes pulling a trailer are treated as a single unit.”
    • Limited — Temporary camping at Wisconsin State Park System properties.
      “Camping reservations are required and can be made up to 11 months in advance of your planned date of occupancy. Campers must make a reservation before setting up on any site.”
    • Limited — Temporary camping in Wisconsin State Park System family campgrounds.
      “Camping reservations are required and can be made up to 11 months in advance of your planned date of occupancy. Campers must make a reservation before setting up on any site. [...] No one may camp or leave a camping unit in a family campground for more than 14 days in any 21 days. [...] Not all properties offer camping during non-summer months. Camping seasons vary by property.”
  • county zoning authorityGeneral

    Wisconsin counties may enact and amend county zoning ordinances under Wis. Stat. § 59.69 for participating towns, which are generally unincorporated areas.

    • County zoning applies only in towns that have adopted county zoning.
    • After a comprehensive revision of the county zoning ordinance, the town has authority to decide whether county zoning applies in the town.
    • Towns have authority to approve or disapprove amendments to a county zoning ordinance.
    • A town that does not fall under county zoning may be unzoned or may have its own town zoning ordinance.
    “Counties exercise zoning ordinances under s. 59.69, Wis. Stats. County zoning only applies in towns that have adopted county zoning.”
  • county building authorityGeneral

    Wisconsin county authority to administer construction and inspection of new one- and two-family dwellings, including in unincorporated areas, through the UDC delegation and inspection framework.

    • Counties must have delegated authority to exercise UDC jurisdiction.
    • A county with delegated authority has jurisdiction over new one- and two-family dwellings in cities, villages, and towns that do not have their own delegated authority.
    • The DSPS page directs applicants to the municipality when it has delegated authority and otherwise to DSPS or the appointed county inspector.
    • The authority described is for construction and inspection under the statewide UDC; local zoning, land-use, sanitary, floodplain, and other requirements may still apply.

    covered construction: new one- and two-family dwellings (Jurisdiction depends on DSPS delegation and whether the municipality has its own delegated authority.)

    “Counties: Counties with delegated authority have been authorized jurisdiction over the construction and inspection of new one- and two-family dwellings in cities, villages, and towns which do not have their own delegated authority.”
    2 more reviewed findings on this topic
    • General — County authority to enforce the statewide Uniform Dwelling Code and administer building inspection and permitting for new one- and two-family dwellings in Wisconsin, including unincorporated areas where the county is the responsible inspection authority.
      “The UDC is primarily enforced by municipal or county building inspectors who must be state-certified. In lieu of local enforcement, municipalities have the option to have the state provide enforcement for just new homes.”
    • Limited — County enforcement of Wisconsin’s Uniform Dwelling Code for new one- and two-family dwellings in municipalities, including towns, that do not have their own delegated authority
      “Counties: Counties with delegated authority have been authorized jurisdiction over the construction and inspection of new one- and two-family dwellings in cities, villages, and towns which do not have their own delegated authority.”

Set by your township or city, not the county

In Wisconsin, zoning is adopted by each township or city, so Buffalo County has no county-wide answer on these. Find your township or city in the list of places on this page, or call its clerk or zoning administrator.

  • Minimum dwelling size

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in Buffalo County, Wisconsin

Is Buffalo County a good place to live off-grid or homestead?

Buffalo County scores 74/100 on the Bolthole Index, a strong county profile. Its strengths: mixed durability signals and a stronger property-autonomy legal backdrop.

Do you need a building permit in Buffalo County, Wisconsin?

Buffalo County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Buffalo County Land Management / Zoning Department (POWTS). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Buffalo County, Wisconsin?

Land in Buffalo County runs about $5,134 per acre, based on the latest county data.

What is the water situation in Buffalo County?

Buffalo County gets about 35.5" of rain a year, with severe drought in roughly 5.6% of years.

How remote is Buffalo County?

A representative private-land location has about 28,869 people within a 30-minute drive and 1,088,758 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

How Buffalo compares in Wisconsin

Compare side-by-side →See all 72 Wisconsin counties ranked →