Bolthole Index

Lyon County, Minnesota

Building permits, zoning and land rules in Lyon County, Minnesota

54Index Score / 100
#58 of 87 in Minnesota

Code-regulated construction in Lyon County, Minnesota requires a building permit where the State Building Code is administered, subject to listed exemptions1. Lyon County has a zoning ordinance and mapped land-use categories, but zoning authority varies by location; Lyon County Planning and Zoning issues septic permits for qualifying systems countywide234. Confirm both the zoning authority and building official for the parcel before applying53.

At a glance

Building permit
Required for code-regulated work, with listed exemptions1
Zoning
County ordinance and zoning map exist; authority varies by location23
Septic permits
Lyon County Planning and Zoning issues them for qualifying systems64
RV living
Long-term occupancy on private land is unconfirmed; ask Planning and Zoning3
Tiny home
No specific county occupancy rule confirmed; zoning and building rules still apply31
Owner-builder
Contractor-license exemption available when statutory conditions are met7
Septic soils
About 1.3% of soils lack severe limits for a conventional drain field8

Who to call

Zoning

Lyon County Planning and Zoning

Planning and zoning contact for Lyon County; the department also administers the county SSTS program

(507) 532-8207 ext. 3

JohnBiren@co.lyon.mn.us

1424 East College Dr. #600, Marshall, MN 56258

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

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Do you need a building permit in Lyon County, Minnesota?

Yes, where the State Building Code is administered. An owner or authorized agent must obtain a building permit before code-regulated construction, enlargement, alteration, repair, movement, demolition, occupancy changes, or regulated mechanical, electrical and plumbing work1. Minnesota lists exemptions, including qualifying one-story detached storage-type accessory structures no larger than 200 square feet and fences no higher than 7 feet1. A building-permit exemption does not excuse a project from zoning or other laws1. The State Building Code is the statewide construction standard, although municipal administration and enforcement can vary, so identify the building official serving the parcel before filing5. Permitted work is subject to inspection and must remain accessible until approved9.

Who issues building permits in Lyon County, and how do you reach them?

Lyon County Planning and Zoning is the county contact for zoning questions, the land-use map and county flood-risk maps10. Reach Lyon County Planning and Zoning at (507) 532-8207 ext. 3, JohnBiren@co.lyon.mn.us, or 1424 East College Dr. #600, Marshall, MN 5625810. The available county information does not identify one building official that administers every Lyon County building permit; municipal administration and enforcement may vary by municipality5. Ask Planning and Zoning which building official and zoning authority serve the parcel, and contact the city directly when land lies inside city limits3. Lyon County Planning and Zoning remains the countywide septic authority for qualifying systems6. Building-permit fees are set locally and may use fixed charges, construction value, or both, so request the applicable fee schedule from the issuing municipality11.

Does Lyon County have zoning?

Yes, but the applicable zoning authority depends on location. Lyon County has a zoning ordinance, and its zoning map distinguishes cities and several land-use and flood categories; the available record does not establish the ordinance's exact geographic reach or mean the county administers every municipal zoning ordinance23. Start with the county zoning and land-use map, then ask Planning and Zoning to identify the authority, district and any shoreland or floodplain overlay for the parcel103. Do not assume one setback applies everywhere: a 100-foot road-right-of-way setback appears in a specific Nordland Township variance, not as a rule for every district or municipality12. We could not confirm countywide minimum lot size, dwelling size, lot coverage or building height; ask the identified zoning authority for the current rules before choosing a house plan or siting a structure3.

How do septic permits work in Lyon County?

Lyon County Planning and Zoning administers Minnesota's SSTS rules through the local septic ordinance and issues septic permits for systems designed for flows up to 10,000 gallons per day64. Systems designed for more than 10,000 gallons per day require Minnesota Pollution Control Agency permitting13. Lyon County requires inspections for every new septic-system construction and replacement; existing systems also face inspection in specified circumstances, including a bedroom addition and certain building-permit or variance requests in shoreland areas14. Only about 1.3% of Lyon County soils are rated without severe limitations for a conventional septic drain field, so arrange the site evaluation early8. Contact Planning and Zoning at (507) 532-8207 ext. 3 before finalizing the house location or purchase terms10.

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

We could not confirm a rule allowing long-term residential use of one RV on private land in Lyon County, so ask Planning and Zoning to identify the parcel's zoning authority before relying on an RV during construction310. Minnesota's recreational-camping-area license applies to an area accommodating 5 or more tents or recreational camping vehicles; that statewide rule does not answer private occupancy of a single RV15. We also could not confirm a special Lyon County tiny-home occupancy rule or a countywide minimum dwelling size. A tiny home that is a code-regulated building remains subject to the building-permit rule where the code is administered, while a new manufactured home installed for occupancy must receive the required installation inspection116. Confirm zoning with the identified authority, septic permitting with Lyon County Planning and Zoning, and building-code administration before placing either unit345.

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

  1. Ask Lyon County Planning and Zoning to identify the parcel's zoning authority and confirm the district, setbacks, shoreland status and flood-risk mapping310.
  1. Have Planning and Zoning identify the building official serving the parcel because local administration may vary by municipality5.
  1. File the building-permit application with the issuing official; the application must describe the work, locate the land, state the intended use and include required construction documents17.
  1. Arrange the septic design and Lyon County septic permit early because only about 1.3% of county soils lack severe conventional-drain-field limitations48.
  1. Obtain any floodplain approval and road-access permit that applies; a house, fill, culvert or bridge in the floodplain needs a permit, and added access to a public highway is subject to the road authority's permit1819.
  1. Schedule required inspections and obtain a certificate of occupancy before using a covered building920.

What should you check before buying land in Lyon County?

Identify the parcel's zoning authority and legal access before closing, and make the septic evaluation an early contingency because only about 1.3% of Lyon County soils lack severe limitations for a conventional drain field3198. Check the county's flood-risk maps and remember that building a house, placing fill, or installing a culvert or bridge in a floodplain requires a permit1018. We could not confirm water-well administration or countywide water or sewer connection requirements, so ask Planning and Zoning and the relevant municipality what applies to the parcel10. Lyon County has about 35.6 people per square mile, and the nearest city of 100,000 or more is roughly 72 miles from the county center2122. The median property-tax bill is about $2,021 per year, with an effective rate near 1%2324.

Watch-outs

  • The available county information does not identify one building official for every parcel; ask Planning and Zoning which municipality or official administers the building permit and inspections at your location510.
  • Lyon County's zoning map combines city and county land-use categories, so confirm which zoning authority and ordinance govern the parcel3.
  • A 100-foot road-right-of-way setback appears in one Nordland Township variance record, but that figure is not a countywide setback; verify the parcel's district rule before siting a building12.
  • Only about 1.3% of Lyon County soils lack severe limitations for a conventional septic drain field, so do not treat an undeveloped parcel as buildable until the septic site is evaluated8.

Sources

  1. Minnesota Rule 1300.0120, Permits, quoted and re-checked
  2. Lyon County Board of Commissioners Meeting Agenda, quoted and re-checked
  3. Lyon County Zoning Map, quoted and re-checked
  4. Septic Systems | Lyon County, MN, quoted and re-checked
  5. Minnesota Statutes § 326B.121, State Building Code; application and enforcement, quoted and re-checked
  6. Septic Systems, quoted and re-checked
  7. Minnesota Statutes § 326B.805, exemptions, quoted and re-checked
  8. 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
  9. 1300.0210 INSPECTIONS (Minnesota statewide rule), quoted and re-checked
  10. Lyon County Planning and Zoning (lyoncountymn.gov)
  11. Minnesota State Building Code Adoption Guide (Minnesota statewide rule), quoted and re-checked
  12. Lyon County Board of Adjustment/Planning Commission Meeting, quoted and re-checked
  13. SSTS design (Minnesota statewide rule), quoted and re-checked
  14. Septic Systems | Lyon County, MN, quoted and re-checked
  15. 2025 Minnesota Statutes, Chapter 327 (Minnesota statewide rule), quoted and re-checked
  16. Manufactured home information (Minnesota statewide rule), quoted and re-checked
  17. Minnesota Rule 1300.0120, Permits, quoted and re-checked
  18. Floodplain Regulations (Minnesota statewide rule), quoted and re-checked
  19. Minnesota Statutes, section 160.18: Access to roads; approaches (Minnesota statewide rule), quoted and re-checked
  20. Minnesota Rule 1300.0220, Certificate of occupancy, quoted and re-checked
  21. Population density: Bolthole Index county data
  22. Straight-line distance from the county center to the nearest city of 100,000+ people: Bolthole Index county data
  23. Median property tax bill: Bolthole Index county data
  24. Effective property tax rate: Bolthole Index county data

Written October 10, 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, Lyon County has countywide zoning.

RuleLyon CountyLincoln CountyMurray CountyYellow Medicine CountyRedwood CountyPipestone CountyCottonwood County
Building permitLimitedLimitedLimitedRequiredRequiredRequiredLimited
County zoningYesYesYesYesYesYesYes
Septic permitsCounty Planning & ZoningCounty Env. OfficeCounty Env. ServicesCounty Land & Resource Management OfficeCounty Env. OfficeCounty Env. ServicesCounty Env./Soil & Water Office

County locator

Lyon County in Minnesota

54
County map
Lyon County highlighted among the Minnesota counties · colored by Index score

How Lyon County scores

Seclusion58100% ev.
Self-Sufficiency28100% ev.
Admin Boringness5368% ev.
Durability51100% ev.
Property Autonomy65100% ev.
Carry Cost65100% ev.

Evidence strength: 95%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$228kTypical home
1%Property tax
$7,146Land / acre
28.6"Annual rain
14.1% of yrsSevere drought
4.6 / yr (+4.1)Mid-century 100°F days
19.3 daysMid-century dry spell
1.63" (+8.2%)Mid-century 1-day rain
1.65×Wildfire change factor
100%Forward climate coverage
$1,917Home insurance / yr
4.6% / yrInsurance growth
0.49%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
33,026People within 30 min
924,040People within 2 hr
25,125Radius comparison (15 mi)
35.6People / sq mi
0.8%Federal land
97.4%Land at 15% slope or less
1.3%Soils rated "not limited" for septic (strict USDA rating)
5,631 acWorkable land screen
3%Wooded land
44 tonsBiomass / forest ac
44.8°FAvg temp

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Cities and towns in Lyon 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.

Not yet researched: Amiret Township · Balaton · Clifton Township · Coon Creek Township · Cottonwood · Custer Township · Eidsvold Township · Fairview Township · Florence · Garvin · Ghent · Grandview Township · Island Lake Township · Lake Marshall Township · Lucas Township · Lynd · Lynd Township · Lyons Township · Minneota · Monroe Township · Nordland Township · Rock Lake Township · Russell · Shelburne Township · Sodus Township · Stanley Township · Taunton · Tracy · Vallers Township · Westerheim Township

Answers from the rulebook for Lyon County

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

Lyon County rules

  • Local zoningVaries (with conditions)

    Aggregate local zoning across Lyon County, where the official county zoning map distinguishes multiple land-use categories and identifies cities and an unincorporated village.

    • This is an aggregate county claim and does not mean Lyon County administers every municipal zoning ordinance.
    • The map includes the categories City, Agriculture, Highway Commercial, Orderly Annexation, Planned Unit Development, Suburban Residence, Rural Residential, Unincorporated Village, Urban Expansion, Floodway, and 1% Annual Flood Chance.
    • The map excerpt does not establish the current applicability or operative text of each district or category.
    “City Agriculture Highway Commercial Orderly Annexation Planned Unit Development Suburban Residence Rural Residential Unincorporated Village Urban Expansion Floodway 1% Annual Flood Chance Lyon County Zoning”
    One more reviewed finding on this topic
    • Present (with conditions) — Lyon County zoning regulation documented by the county; the exact geographic extent of the ordinance was not established in the opened source.
      “This ordinance repeals Article 6 of the Lyon County Zoning Ordinance.”
  • SetbacksSpecified

    A road-right-of-way setback for the cited Nordland Township parcel in Lyon County.

    • The cited record concerns a variance request; the requested construction was 35 feet from the road right of way against a required 100-foot setback.
    • The source does not establish that the same setback applies in every district or municipality.

    required setback: 100 feet (Variance request sought construction 35 feet from the road right of way.)

    “The required setback is 100 feet from the road right of way. This request represents a 65-foot variance.”
  • Who permits septicCounty (with conditions)

    Subsurface sewage treatment systems in Lyon County.

    • Lyon County Planning & Zoning administers Minnesota Rules Chapters 7080-7083 through a local SSTS ordinance.
    • The county issues permits for systems designed with flows up to 10,000 gallons per day.

    maximum design flow: <= 10000 gallons per day

    “Lyon County Planning & Zoning administers Minnesota Rules Chapters 7080-7083 through their local Subsurface Sewage Treatment System (SSTS) ordinance; issuing permits for systems designed with flows up to 10,000 gallons per day.”
    One more reviewed finding on this topic
    • County (with conditions) — Subsurface sewage treatment systems in Lyon County.
      “Lyon County Planning & Zoning administers”
  • Septic permitRequired

    SSTS systems in Lyon County designed with flows up to 10,000 gallons per day.

    • The county page states that Lyon County Planning & Zoning issues permits for systems designed with flows up to 10,000 gallons per day.
    • Minnesota Rules Chapters 7080-7083 apply through the local SSTS ordinance.

    maximum design flow: <= 10000 gallons per day

    “Lyon County Planning & Zoning administers Minnesota Rules Chapters 7080-7083 through their local Subsurface Sewage Treatment System (SSTS) ordinance; issuing permits for systems designed with flows up to 10,000 gallons per day.”
  • Septic inspectionRequired

    New septic-system construction and replacement in Lyon County, with additional inspection triggers for existing systems.

    • Inspections are required for all new septic system construction and replacement.
    • Existing systems must also be inspected when there is a bedroom addition on a building permit.
    • Existing systems must also be inspected when any building permit or variance is requested for systems located in a shoreland area.
    • Septic systems must comply with Minnesota Rules Chapters 7080-7083 at property transfer.
    “In Lyon County, inspections are required for all new septic system construction and replacement. Lyon County ordinances also state that septic systems must be in compliance with Minnesota Rules Chapter 7080-7083 at the time of a property transfer. Existing systems must also be inspected when there is a bedroom addition on a building permit, or when any building permit or variance is requested for systems located in a shoreland area.”
  • County-wide zoningPresent

    Lyon County has a Planning & Zoning Department with adopted zoning codes establishing minimum setbacks and land-use regulation in unincorporated areas.

    Lyon County Planning and Zoning ↗Scouted from the county site, not yet independently re-checked

Minnesota rules that apply here

  • Building permitLimited

    Construction, enlargement, alteration, repair, moving, demolition, or occupancy changes involving buildings or structures, and regulated gas, mechanical, electrical, plumbing, or other equipment, in Minnesota jurisdictions where the State Building Code is administered and enforced.

    • The State Building Code is the statewide construction standard for buildings and structures governed by the code.
    • The work must be preceded by an application to the building official and issuance of the required permit.
    • Municipalities that had adopted the State Building Code as of January 1, 2008 generally must continue administering and enforcing it; the statutory exception is for municipalities with a population under 2,500 located outside a metropolitan county.
    • A municipality not required to administer and enforce the code may choose to do so by adopting the code by ordinance.
    • Permits are not required for listed exempt work, including one-story detached accessory structures used as tool or storage sheds, playhouses, and similar uses not exceeding 200 square feet; fences not over seven feet; and other exemptions in Minnesota Rules part 1300.0120, subpart 4.
    • Permit exemptions do not authorize work violating the State Building Code or other applicable laws or ordinances.
    • Ordinary repairs are exempt only when they do not include specified structural, egress, plumbing, electrical, mechanical, or public-health or general-safety work.

    detached accessory structure exemption floor area: <= 200 square feet (one-story detached accessory structures used as tool and storage sheds, playhouses, and similar uses) · fence exemption height: <= 7 feet · emergency repair permit application deadline: next working business day (equipment replacements and repairs performed in an emergency situation)

    “An owner or authorized agent who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert, or replace any gas, mechanical, electrical, plumbing system, or other equipment, the installation of which is regulated by the code; or cause any such work to be done, shall first make application to the building official and obtain the required permit.”
    One more reviewed finding on this topic
    • Required — Construction, enlargement, alteration, repair, movement, demolition, occupancy changes, and regulated equipment work governed by the Minnesota State Building Code.
      “An owner or authorized agent who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert, or replace any gas, mechanical, electrical, plumbing system, or other equipment, the installation of which is regulated by the code; or cause any such work to be done, shall first make application to the building official and obtain the required permit.”
  • Owner-builder exemptionAvailable (with conditions)

    An owner of residential real estate who personally builds or improves residential real estate, as an exemption from the residential contractor licensing requirement.

    • The owner must occupy or intend to occupy the residential real estate for residential purposes, or retain ownership for rental purposes after completion.
    • The exemption does not apply when the owner constructs or improves residential real estate for resale or speculation.
    • An owner is presumed to be building or improving for speculation if the owner constructs or improves more than one property within any 24-month period, unless the properties will be retained for rental purposes.
    • This is a contractor-licensing exemption and does not waive applicable building permits, inspections, or certificates of occupancy.

    speculation presumption threshold: > 1 additional property within 24 months (The presumption does not apply if the properties will be retained by the owner for rental purposes.)

    “The license requirement does not apply to: [...] an owner of residential real estate who builds or improves residential real estate”
    One more reviewed finding on this topic
    • Conditional — Owner licensing exemption for an owner of residential real estate who builds or improves the property.
      “This exemption does not apply to an owner who constructs or improves residential real estate for purposes of resale or speculation.”
  • Building code adoptedAdopted (with conditions)

    Construction, reconstruction, alteration, repair, and use of buildings and other structures of the type governed by the Minnesota State Building Code throughout Minnesota.

    • The State Building Code supersedes the building code of any municipality.
    • The State Building Code does not apply to agricultural buildings except for the state inspections and rulemaking identified in Minnesota Statutes section 326B.121, subdivision 1, paragraph (c), clause (1), and the structural-support requirement for translucent panels or other skylights without raised curbs in clause (2).
    • The 2020 Minnesota State Building Code is effective March 31, 2020, except the Minnesota Mechanical Fuel Gas Code, which is effective April 6, 2020.
    • Municipal enforcement generally requires adoption by local ordinance, subject to statutory requirements for certain municipalities and statutory enforcement responsibilities where no adoption ordinance is in effect.
    • The 2024 Minnesota Commercial Energy Code is effective January 5, 2024.
    • Requirements for adult changing stations are effective August 15, 2025, and requirements for window-cleaning safety features are effective November 7, 2025, according to the Department of Labor and Industry update page.

    2020 Minnesota State Building Code effective date: 2020-03-31 (Minnesota Mechanical Fuel Gas Code effective 2020-04-06) · 2024 Minnesota Commercial Energy Code effective date: 2024-01-05 · Adult changing station supplement effective date: 2025-08-15 · Window-cleaning safety feature supplement effective date: 2025-11-07

    “(a) The State Building Code is the standard that applies statewide for the construction, reconstruction, alteration, repair, and use of buildings and other structures of the type governed by the code.”
    One more reviewed finding on this topic
  • InspectionsRequired

    Construction or work for which a Minnesota State Building Code permit is required.

    • The work must remain accessible and exposed until approved.
    • The permit applicant must cause the work to remain accessible and exposed for inspection.
    • The building official identifies required inspections; the permit holder must maintain the inspection record card until final approval.
    • Work may not proceed beyond each successive inspection point without building-official approval; noncomplying portions must be corrected and may not be covered or concealed until authorized.
    “Construction or work for which a permit is required is subject to inspection by the building official”
  • Certificate of occupancyLimited

    Use or occupancy of buildings and structures, and changes in existing occupancy classification, in Minnesota jurisdictions administering and enforcing the State Building Code.

    • A building or structure may not be used or occupied, and an existing occupancy classification may not be changed, until the building official issues a certificate of occupancy under Minnesota Rules part 1300.0220.
    • The rule applies through the building official and therefore depends on the relevant jurisdiction administering and enforcing the State Building Code.
    • Issuance of a certificate of occupancy is not approval of a violation of the code or other municipal ordinances; a certificate purporting to authorize violation or cancellation of those requirements is invalid.
    • A municipality has the option of requiring certificates of occupancy for U occupancies constructed under the International Building Code, accessory structures constructed under the International Residential Code, and used manufactured homes moved into or within a jurisdiction.
    • Legal occupancy of a structure existing on the date of code adoption may continue without change.
    • A temporary certificate may be issued before all permitted work is complete if the occupied portion can be occupied safely; the building official sets its validity period.

    optional certificate category: U occupancies constructed under the International Building Code (municipality has the option of requiring a certificate) · optional certificate category: accessory structures constructed under the International Residential Code (municipality has the option of requiring a certificate) · optional certificate category: used manufactured homes moved into or within a jurisdiction (municipality has the option of requiring a certificate)

    “No building or structure shall be used or occupied, and no change in the existing occupancy classification of a building, structure, or portion of a building or structure shall be made until the building official has issued a certificate of occupancy for the building or structure under this part.”
    One more reviewed finding on this topic
    • Required — Use or occupancy of buildings and changes in occupancy classification governed by Minnesota Rule chapter 1300.
      “No building or structure shall be used or occupied, and no change in the existing occupancy classification of a building, structure, or portion of a building or structure shall be made until the building official has issued a certificate of occupancy for the building or structure under this part.”
  • Zoning districtsPartial

    Minnesota DNR model floodplain ordinance district classifications, not every local zoning ordinance.

    • The model ordinance identifies floodway, flood fringe, and A Zones (general floodplain) as separate districts.
    • The model ordinance is a model resource; local adoption and local zoning maps determine applicability.
    • This claim does not establish that every Minnesota jurisdiction uses these districts.
    “This model includes the three primary types of floodplain districts: Floodway, Flood Fringe, and General Floodplain. As presented, it incorporates ordinance provisions for a community that has all three districts present on their Flood Insurance Rate Maps. Local communities are encouraged to work with DNR to tailor the language based on the flood districts present in the community.”
  • Camping on your landLimited

    Private or public areas accommodating five or more tents or recreational camping vehicles on a daily, nightly, weekly, or longer basis

    • An annual license from the Minnesota Department of Health is required before establishing, maintaining, conducting, or operating a recreational camping area.
    • The license requires application, payment of the statutory fee, and approval for operation including plan review.
    • A recreational camping area excludes children's camps, industrial camps, migrant labor camps, United States Forest Service camps, state forest service camps, qualifying state wildlife-management or state-owned public-access areas, qualifying temporary holding areas adjacent to motorsports facilities, and a privately owned area used by a private club no more than once annually and no longer than seven consecutive days.
    • A special event recreational camping area operates no more than two times annually and for no more than 14 consecutive days.
    • The statute does not resolve local zoning or land-use requirements.

    minimum accommodated tents or recreational camping vehicles: >= 5 units (Statutory exclusions apply.) · special event operating frequency: <= 2 times annually (Special event recreational camping area.) · special event duration: <= 14 consecutive days (Special event recreational camping area.) · annual license base fee for recreational camping area with 24 or fewer sites: 100 USD (Additional $8 per licensed site; special event areas are excluded from that per-site paragraph.) · annual license base fee for recreational camping area with 25 to 99 sites: 410 USD (Additional $8 per licensed site; special event areas are excluded from that per-site paragraph.) · annual license base fee for recreational camping area with 100 or more sites: 610 USD (Additional $8 per licensed site; special event areas are excluded from that per-site paragraph.)

    “"Recreational camping area" means any area, whether privately or publicly owned, used on a daily, nightly, weekly, or longer basis for the accommodation of five or more tents or recreational camping vehicles free of charge or for compensation. [...] "Special event recreational camping area" means a recreational camping area which operates no more than two times annually and for no more than 14 consecutive days. [...] No person, firm or corporation shall establish, maintain, conduct or operate a manufactured home park or recreational camping area within this state without first obtaining an annual license from the state Department of Health.”
  • Tiny homesLimited

    Construction and residential use of tiny houses statewide, subject to the Minnesota State Building Code and applicable municipal zoning ordinances.

    • The Minnesota State Building Code applies statewide to construction of buildings, including tiny houses.
    • Municipal zoning ordinances vary by municipality and regulate land use, location, height, width, foundation type, number of stories, and building size.
    • The jurisdiction must be consulted for local zoning specifics.
    • Tiny houses used as dwelling units must comply with the Minnesota Residential Code unless otherwise stated in Appendix Q.
    • A tiny house is a dwelling of 400 square feet or less in floor area, excluding lofts.
    • Applicable requirements include light, ventilation, heating, minimum room sizes, ceiling heights, sanitation, toilet, bath and shower spaces, emergency escape and rescue openings, means of egress, smoke alarms, and carbon monoxide alarms.

    maximum tiny-house floor area: <= 400 square feet (lofts excluded) · minimum habitable-space and hallway ceiling height: >= 6.67 feet (6 feet 8 inches) · minimum bathroom, toilet-room, and kitchen ceiling height: >= 6.33 feet (6 feet 4 inches)

    “The Minnesota State Building Code is the standard of construction that applies statewide for the construction of buildings (MS 326B.121) including tiny houses.”
  • Manufactured homesLimited

    New manufactured homes installed for occupancy statewide in Minnesota

    • Inspection is required under Federal Installation Standards Programs, CFR 3285 and 3286.
    • Manufactured-home alterations require documentation submitted for review to the Department of Labor and Industry or the local authority having jurisdiction before work begins.
    • Local building officials and local code enforcement may apply depending on the municipality.
    “All new manufactured homes installed in Minnesota for occupancy are required to be inspected according to the Federal Installation Standards Programs, Code of Federal Regulations (CFR) 3285 and 3286.”
  • Accessory dwellingsLimited

    Temporary family health care dwellings used as a narrow accessory residential dwelling category statewide, where the municipality has not opted out of Minnesota Statutes § 462.3593.

    • The dwelling must be primarily assembled away from its installation site, be no more than 300 gross square feet, lack a permanent foundation, meet state-recognized accessibility standards, provide water and electric utilities, use compatible exterior materials, have at least R-15 insulation, be transportable by the specified truck types, comply with Minnesota Rules chapter 1360 or 1361 with the required seal and data plate or ANSI Code 119.2, and have a backflow check valve.
    • A caregiver or relative must apply for a municipal temporary dwelling permit with the required signatures and documentation, including provider-network proof, medical certification, septic-service documentation, adjacent-owner notice affidavit, and a site map.
    • The dwelling must be on property where the caregiver or relative resides, comply with setbacks and applicable floor-area-ratio limits, and permit safe and timely access for septic services and emergency vehicles.
    • Occupancy is limited to one identified mentally or physically impaired person, and only one temporary family health care dwelling is allowed per lot.
    • The dwelling must comply with applicable state law, local ordinances, and charter provisions unless otherwise provided.
    • The initial permit lasts six months and may be renewed once for an additional six months.
    • The municipality may inspect, revoke the permit for violations, and require removal within 60 days after revocation.
    • Unless otherwise provided by ordinance, the municipality may charge up to $100 for the initial permit and up to $50 for renewal.
    • The municipality may opt out of the statutory requirements by ordinance.

    maximum dwelling area: <= 300 gross square feet · initial permit term: 6 months (renewable once for an additional six months) · maximum initial permit fee: <= 100 USD (unless otherwise provided by ordinance) · maximum renewal permit fee: <= 50 USD (unless otherwise provided by ordinance) · maximum occupants: 1 person (occupant must be a mentally or physically impaired person) · maximum dwellings per lot: 1 dwelling

    “A temporary family health care dwelling that meets the requirements of this section cannot be prohibited by a local ordinance that regulates accessory uses or recreational vehicle parking or storage.”
    One more reviewed finding on this topic
    • Limited — Accessory dwelling units statewide, including conversion of a structure into an ADU, subject to local zoning and Minnesota residential building-code requirements.
      “Local zoning ordinances dictate if a tiny home or accessory dwelling unit (ADU) is allowed on the property.”
  • Off-grid sanitationLimited

    Primitive dwellings using toilet-waste treatment devices in low dwelling-density areas, and privies governed by Minnesota SSTS rules.

    • Septage disposal by the owner must follow local ordinances.
    • If no local ordinance exists, septage must not be discharged to surface waters, drainageways, steeply sloping areas, or wet areas in a manner or volume harmful to the environment or public health or that creates a nuisance.
    • Material must be buried or covered with soil.
    • If site conditions do not meet the rule, solids disposal must be performed under the applicable rule by a licensed maintenance business.
    • Privy solids must be removed when the privy is filled to one-half capacity.
    • Abandoned pits must have sewage solids and contaminated soil removed and be filled with clean earth and slightly mounded.

    privy solids removal threshold: 50 percent capacity

    “For primitive dwellings using toilet waste treatment devices in low dwelling density areas, septage disposal from these devices by the owner must be in accordance with local ordinances. If no ordinance exists, the septage must not be discharged to surface waters, drainageways, steeply sloping areas, or wet areas in a manner or volume that is harmful to the environment or public health or that creates a nuisance. The material must be buried or covered with soil.”
  • Well permitLimited

    Construction of water-supply, dewatering, and environmental wells in Minnesota.

    • A well notification and applicable filing fee are generally required before construction; the statute describes notification rather than a general construction-permit requirement for these wells.
    • A drive-point water-supply well personally constructed by an individual on owned or leased property for farming, agricultural purposes, or the individual's place of abode must be reported within ten days after completion, and no notification fee may be charged.
    • The notification requirement preempts local permits and notifications unless the commissioner has delegated permitting or notification authority under section 103I.111.
    • If operation of the well requires a Minnesota Department of Natural Resources appropriation permit, specified information must be submitted to the commissioner of natural resources and construction may begin after preliminary approval.
    • A well that is not in use must be sealed or have a maintenance permit, subject to the statutory environmental/dewatering-well exception.

    drive-point well notification deadline: 10 days after completion (personally constructed by an individual on owned or leased property for farming, agricultural purposes, or the individual's place of abode) · unused well status: sealed or maintenance permit (environmental or dewatering wells not sealed by 14 months after completion require an annually renewed maintenance permit)

    “Except as provided in paragraph (d), a person may not construct a water-supply, dewatering, or environmental well until a notification of the proposed well on a form prescribed by the commissioner is filed with the commissioner with the filing fee in section 103I.208, and, when applicable, the person has met the requirements of paragraph (e).”
  • Agricultural exemptionAvailable (with conditions)

    Agricultural buildings statewide that meet the definition in Minnesota Statutes § 326B.103, subdivision 3.

    • The structure must be on agricultural land as determined by the governing assessor for the municipality or county under section 273.13, subdivision 23.
    • The structure must be designed, constructed, and used to house farm implements, livestock, or agricultural products under section 273.13, subdivision 23.
    • The building must be used by the owner, lessee, and sublessee and members of their immediate families, employees, and persons engaged in pickup or delivery of agricultural products.
    • The State Building Code does not apply except with respect to state inspections required or rulemaking authorized by sections 103F.141, 216C.19, subdivision 9, and 326B.36.
    • Translucent panels or other skylights without raised curbs must be supported to have equivalent load-bearing capacity as the surrounding roof.
    “The State Building Code is the standard that applies statewide for the construction, reconstruction, alteration, repair, and use of buildings and other structures of the type governed by the code. [...] (c) The State Building Code does not apply to agricultural buildings except: (1) with respect to state inspections required or rulemaking authorized by sections 103F.141; 216C.19, subdivision 9; and 326B.36; and (2) translucent panels or other skylights without raised curbs shall be supported to have equivalent load-bearing capacity as the surrounding roof.”
  • Subdividing landRegulated (with conditions)

    Subdivision regulation by Minnesota municipalities that adopt subdivision regulations under Minnesota Statutes section 462.358.

    • A municipality may adopt subdivision regulations by ordinance; the statute does not establish one uniform ordinance applicable to every municipality.
    • Regulations may apply only to certain classes or kinds of subdivisions and must be uniform for each class or kind.
    • A municipality may extend its subdivision regulations to unincorporated territory within two miles of its limits, subject to the statutory exception for towns that have adopted subdivision regulations.
    • Regulations may address lot size, location, grading, improvements, utilities, site planning, floodplains, shorelands, soils, water, vegetation, energy, air quality, and geologic and ecological features.
    • Regulations may prohibit certain classes or kinds of subdivisions when consistent with the comprehensive plan and statutory purposes.
    • All subdivisions creating five or more lots or parcels that are 2-1/2 acres or less in size must be platted when subject to the municipal subdivision regulations.

    municipal extension distance: <= 2 miles (Unincorporated territory; not in a town which has adopted subdivision regulations.) · mandatory platting threshold: >= 5 lots or parcels (Each lot or parcel is 2-1/2 acres or less in size.) · maximum parcel size for mandatory platting: <= 2.5 acres (Applies to subdivisions creating five or more lots or parcels.)

    “a municipality may by ordinance adopt subdivision regulations establishing standards, requirements, and procedures for the review and approval or disapproval of subdivisions.”
  • Driveway accessRequired

    Direct driveway connections to or from Minnesota state highways and work within MnDOT right-of-way.

    • A permit is required before constructing or modifying a direct driveway connection to or from a state highway.
    • The requirement covers agricultural, single-family residential, commercial, industrial, recreational, public, institutional, natural-resource, and multiple-family residential uses, and privately owned streets.
    • A new driveway, including a temporary driveway, requires a permit.
    • Modifying an existing driveway or changing its use or major traffic pattern may require a new permit.
    • The application should be submitted by the property owner; an agent, tenant, contractor, or developer must include written authorization from the owner.
    • This claim does not establish driveway-permit requirements for roads outside MnDOT jurisdiction.
    “A MnDOT Access Driveway Permit is required before a direct driveway connection to or from a state highway is constructed or modified.”
    2 more reviewed findings on this topic
    • Limited — Additional ingress to or egress from a public highway for property with a right of direct private access.
      “The owner or occupant of property abutting upon a public highway, having a right of direct private access thereto, may provide such other or additional means of ingress from and egress to the highway as will facilitate the efficient use of the property for a particular lawful purpose, subject to reasonable regulation by and permit from the road authority as is necessary to prevent interference with the construction, maintenance and safe use of the highway and its appurtenances and the public use thereof.”
    • Required — Changes in access to or from a MnDOT right-of-way, including driveway or other access points to a trunk highway, and changes in property use affecting such access.
      “An Access / Driveway Permit is required whenever there is a request for change in access to or from a Minnesota Department of Transportation (MnDOT) right-of-way or a change in use of the property.”
  • Building in a floodplainRequired

    Construction and fill in regulated Minnesota floodplain areas, including houses, fill, culverts, and bridges.

    • Projects must comply with the community floodplain management ordinance.
    • For unincorporated areas, the county zoning authority generally administers the rule; cities generally administer within city boundaries; some townships administer floodplain permits and zoning.
    • In flood-fringe areas, residential buildings must place the lowest floor, including the basement, above the flood protection elevation.
    • The flood protection elevation is one foot above the 100-year flood plus any stage increase from flood-fringe designation; local communities may require a higher elevation.
    • If maps do not delineate floodway and flood fringe, the applicant may need engineering information verifying the flood protection elevation and that the site is outside the floodway.

    minimum lowest-floor elevation above 100-year flood: >= 1 foot (plus any stage increase due to designation of flood fringe areas)

    “Such projects as building a house, placement of fill, or installing a culvert or bridge would all require a floodplain permit.”
    2 more reviewed findings on this topic
    • Required — Building a house, placing fill, or installing a culvert or bridge in portions of a Minnesota floodplain.
      “Construction and fill is generally permitted in portions of the floodplain, provided they adhere to their community’s floodplain management ordinance. Such projects as building a house, placement of fill, or installing a culvert or bridge would all require a floodplain permit.”
    • Limited — Dwellings, enclosed structures, fill, or obstruction of flood flows within a mapped Minnesota floodway.
      “If the property a person owns or is interested in buying lies within this mapped floodway, they will not be permitted to construct a dwelling or other enclosed structure, place fill material, or obstruct flood flows in any other way.”
  • Permit feesVariable (with conditions)

    Building permit fees under the Minnesota State Building Code, as administered by local building departments.

    • Fees are established by the local building department and are not supplied as one statewide fee schedule.
    • Fees must be commensurate with services provided and reasonable, fair, and proportionate to actual service costs.
    • Fees may include building permit, plan review, state surcharge, electrical, plumbing, heating/mechanical, septic, and sewer and water fees.
    • Permit fees are generally based on construction valuation and/or a fee for service.
    • The applicant must provide an estimated construction valuation, subject to verification by the building official.
    • Municipal fee schedules may include special investigation, penalty, reinspection, plan-review, fixed, and refund-policy fees.
    “It is for this reason that the building code does not specifically identify or provide for a fee schedule to be used by a jurisdiction. Each municipality is to evaluate local costs associated with the enforcement of the code.”
    One more reviewed finding on this topic
    • Variable (with conditions) — Minnesota State Building Code permit fees administered by adopting local municipalities.
      “Permit fees are to be determined and established by the local municipality. Permit fees must be established so that they cover all costs associated with administration and enforcement the State Building Code - to run a functioning building department. Permit fees can be developed on a “fixed fee” basis and on a construction “value” type of sliding fee schedule, or a combination of both.”
  • Permit processPublished (with conditions)

    Applications for permits governed by the Minnesota State Building Code.

    • The application must be written on a form furnished by the Department of Building Safety.
    • The application must identify and describe the work, locate the property, state intended use and occupancy, identify construction type, include required construction documents and information, state proposed-work valuation, be signed by the applicant or authorized agent, and provide other data required by the building official.
    • The building official examines applications within a reasonable time.
    • Nonconforming applications must be rejected with reasons; conforming applications must receive a permit.
    • The code in effect at the time of application applies.
    “Subpart 7. Application for permit. To obtain a permit, the applicant shall file an application in writing on a form furnished by the Department of Building Safety for that purpose.”
    2 more reviewed findings on this topic
    • Published (with conditions) — Applications for permits governed by Minnesota Rule 1300.0120.
      “To obtain a permit, the applicant shall file an application in writing on a form furnished by the Department of Building Safety for that purpose.”
    • Published (with conditions) — Building-permit administration under the Minnesota State Building Code where the code has been adopted or otherwise applies.
      “However, it is only the building official that can review and approve building code requirements and subsequently sign-off on and/or issue building permits. If such an application is construction related only and the work complies with the building code, the building official must issue a building permit. Other building permits may be denied (by the local board or commission) if the proposal does not comply with other local zoning codes or ordinances.”
  • county zoning authorityLimited

    County planning and zoning authority over unincorporated areas of Minnesota.

    • The authority applies to a county having less than 300,000 population according to the 1950 federal census.
    • The statute authorizes county planning and zoning activities generally within the qualifying counties; it does not identify a separate unincorporated-area limitation in this section.
    • Except as otherwise provided, a county regardless of population must not enact, amend, or enforce an ordinance eliminating or terminating a lawful use by amortization.
    • The amortization prohibition does not apply to adults-only bookstores, adults-only theaters, or similar adults-only businesses as defined by ordinance.
    • The amortization subdivision does not prohibit nuisance-prevention or nuisance-abatement enforcement or elimination of a use determined to be a public nuisance without payment of compensation.

    population threshold: < 300000 persons (According to the 1950 federal census)

    “having less than 300,000 population according to the 1950 federal census is authorized to carry on county planning and zoning activities.”
  • county building authorityGeneral

    Minnesota counties may administer and enforce the State Building Code within their jurisdiction by ordinance; this includes a county's authority over residential construction in unincorporated county territory, subject to the statutory limits on code application and local provisions.

    • The statutory authorization is to administer and enforce the State Building Code, rather than a county-specific building code.
    • A county that is not already required by Minnesota Statutes § 326B.121, subdivision 2(a), to administer and enforce the code may elect to do so by ordinance.
    • The State Building Code applies statewide to construction, reconstruction, alteration, repair, and use of buildings and structures governed by the code.
    • The State Building Code does not apply to agricultural buildings except for state inspections or rulemaking authorized by Minnesota Statutes §§ 103F.141, 216C.19, subdivision 9, and 326B.36, and except that translucent panels or other skylights without raised curbs must have equivalent load-bearing capacity as the surrounding roof.
    • A municipality may not require building-code provisions regulating structural components or systems that differ from the State Building Code; with state building official approval, it may adopt a more restrictive ordinance where geological conditions warrant it.
    • A municipality may enforce the State Building Code through lawful means, including contracts with other municipalities or qualified individuals; building-permit fees may be retained or remitted to reimburse them.
    “If a municipality is not required by paragraph (a) to administer and enforce the State Building Code, the municipality may choose to administer and enforce the State Building Code within its jurisdiction by adopting the code by ordinance.”

Set by your town or city, not the county

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

  • Minimum dwelling size
  • Minimum lot size
  • Lot coverage
  • Building height
  • Living in an RV
  • Short-term rentals

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Mandatory utility hookup — Water or sewer connection requirements in Lyon County.

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 Lyon County, Minnesota

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

Lyon County scores 54/100 on the Bolthole Index, a solid county profile. Its strengths: a stronger property-autonomy legal backdrop and manageable long-term carry cost. Watch-outs: workable self-sufficiency basics (28.6″/yr rainfall).

Do you need a building permit in Lyon County, Minnesota?

Lyon County requires a building permit only in limited cases (such as floodplains or specific zones), and it enforces county zoning. Onsite septic is permitted by Lyon County Planning & Zoning (SSTS program). 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 Lyon County, Minnesota?

Land in Lyon County runs about $7,146 per acre, based on the latest county data.

What is the water situation in Lyon County?

Lyon County gets about 28.6" of rain a year, with severe drought in roughly 14.1% of years.

How remote is Lyon County?

A representative private-land location has about 33,026 people within a 30-minute drive and 924,040 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 Lyon compares in Minnesota

Compare side-by-side →See all 87 Minnesota counties ranked →