Bolthole Index

Keweenaw County, Michigan

Building permits, zoning and land rules in Keweenaw County, Michigan

75Index Score / 100
#45 of 83 in Michigan

Keweenaw County, Michigan requires permits before most construction begins, while an accessory structure of 200 square feet or less is exempt from the building permit but still needs zoning approval1. The county administers zoning in Grant, Sherman, Houghton and Allouez townships and Ahmeek Village; Eagle Harbor Township has separate regulations23. New construction must have an existing or permitted well and septic system before the county grants a zoning permit4.

At a glance

Building permit
Required before most construction; accessory structures of 200 square feet or less remain subject to a zoning permit1
Zoning
County-administered in Grant, Sherman, Houghton and Allouez townships and Ahmeek Village; separate in Eagle Harbor Township23
Septic
Western Upper Peninsula Health Department requires site approval and a permit before system construction56
Well
A water-system construction permit is required before a private well is built7
RV or tiny home
Occupancy rules are not confirmed; ask the zoning authority for the parcel before placing or occupying one8
Agricultural lot size
The county-administered Agricultural Zoning District has a 5-acre minimum lot size9
Owner-builder
No permit exemption was confirmed; the county says owners doing their own repairs remain responsible for permits10

Who to call

Building permits

Keweenaw County Zoning and Construction Codes Department (ZCCD)

County zoning and building, electrical, mechanical, plumbing and soil-erosion permit intake

906 523-8570

5095 4th Street, Eagle River, MI 49950

Septic permits

Western UP Health Department — Houghton & Keweenaw Counties

On-site sewage and private water-supply permitting for Keweenaw County

(906) 482-7382

540 Depot St, Hancock, MI 49930

Roads & driveways

Keweenaw County Road Commission

Right-of-way and transportation permits on Keweenaw County roads

906-337-1610

1916 Fourth Street, P.O. Box 379, Mohawk, Michigan 49950

Online permits →

Contact details are copied from each office’s official page and were checked against it on September 27, 2026.

Do you need a building permit in Keweenaw County, Michigan?

Yes. Keweenaw County requires permits before construction starts, whether the owner does the work or hires a contractor110. An accessory structure of 200 square feet or less does not need a building permit, but it still needs a zoning permit1. Michigan has adopted a statewide building code, with residential work governed through the Michigan Residential Code11. The county's process begins with zoning approval and then moves to the building-permit application12. Do not begin work while an application is pending: the county expressly places permit approval before construction1.

Who is the Keweenaw County building department?

The Keweenaw County Zoning and Construction Codes Department is the practical starting point for county zoning and construction permits13. Its permit clerk handles intake for building, electrical, mechanical, plumbing and soil-erosion matters at 5095 4th Street, Eagle River, MI 49950, phone 906 523-857013. Applications may be emailed or delivered with the site plan, required information and payment, and zoning approval comes before the building application12. With proper documentation, the county says to allow 5 business days for building-permit issuance12. Separate trade permits may be timed closer to the relevant construction phase12.

Does Keweenaw County have zoning?

Keweenaw County administers zoning in Grant, Sherman, Houghton and Allouez townships and Ahmeek Village2. Eagle Harbor Township maintains its own zoning regulations, so a parcel there must be checked with the township rather than assumed to follow the county ordinance3. In county-administered areas, setbacks, lot coverage, structure height and other dimensions depend on the zoning district1415. The Agricultural Zoning District has a 5-acre minimum lot size9. Lakefront and riverfront structures generally have a 75-foot high-water-mark setback, except in district RS-114. The zoning-permit application fee is $5016.

How do septic and well permits work in Keweenaw County?

Western Upper Peninsula Health Department serves Keweenaw County for on-site sewage and private water-supply permits67. The Houghton and Keweenaw office is at 540 Depot St, Hancock, MI 49930, phone (906) 482-738217. For a new or replacement septic system, the parcel must first pass a site evaluation; then the application must be approved and fees paid before construction begins5. The installer must arrange a final inspection, and the system cannot be covered until approval is given18. A private well likewise needs an approved construction permit before work starts7. County zoning approval for new construction requires either existing well and septic service or valid permits for both4. County soils deserve early attention because 0% are rated free of severe limitations for a conventional drain field19.

Can you live in an RV or tiny home in Keweenaw County?

We could not confirm a rule that generally allows temporary camping or RV occupancy on private land in Keweenaw County, so ask the zoning authority for the parcel before moving an RV onto it. We also could not confirm a county standard for tiny-home occupancy or minimum dwelling size, so ask the Keweenaw County Zoning and Construction Codes Department or Eagle Harbor Township, as applicable. Michigan guidance does not treat a tiny house as a recreational unit merely because it has wheels and calls for local zoning, building, electrical, plumbing and health approvals where applicable8. Any sanitary sewage must go to a municipal sewer or an onsite septic system20.

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

  1. Identify whether county zoning or Eagle Harbor Township zoning governs the parcel23.
  2. Confirm the zoning district, allowed use, setbacks and lot standards before finalizing a design2114.
  3. Obtain well and septic approval from Western Upper Peninsula Health Department, because county zoning approval for new construction depends on existing service or valid permits457.
  4. Submit the zoning application, site plan, required information and $50 fee to the county when county zoning applies1216.
  5. After zoning approval, submit the building application and any required trade applications12.
  6. Arrange inspections and complete the work under approved plans1812.

What should you check before buying land in Keweenaw County?

Start with septic feasibility: 0% of mapped county soils are rated free of severe limitations for a conventional drain field, so obtain the health department's site evaluation before relying on a homesite195. Check the zoning authority and district because Eagle Harbor Township uses separate rules, while county standards elsewhere vary by district321. Verify shore setbacks where water frontage is involved; the county-administered rule is generally 75 feet from the high-water mark except in RS-114. Ask the Keweenaw County Road Commission about right-of-way access; its office processes right-of-way permits through Oxcart22. Budget for an effective property-tax rate near 0.9% and a median annual bill near $1,7042324. The county is sparsely settled at about 4 people per square mile, and 77.8% of its land is wooded2526.

Watch-outs

  • Eagle Harbor Township has separate zoning regulations, so county zoning tables should not be applied to a parcel there3.
  • County zoning approval for new construction requires an existing well and septic system or valid permits for both4.
  • No general private-land RV occupancy, tiny-home occupancy or minimum dwelling-size rule was confirmed; ask the zoning authority for the parcel before buying or placing a unit8.
  • Only accessory structures of 200 square feet or less avoid the building permit, and those structures still require a zoning permit1.

Sources

  1. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  2. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  3. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  4. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  5. Sewage System Permitting – Western UP Health Department, quoted and re-checked
  6. Western Upper Peninsula Health Department - About Us (2026 county census)
  7. Well Construction Permitting – Western UP Health Department, quoted and re-checked
  8. 2022 ARVC - General (Michigan statewide rule), quoted and re-checked
  9. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  10. Keweenaw County Zoning & Construction Codes (2026 county census)
  11. Code Books (Michigan statewide rule), quoted and re-checked
  12. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  13. Keweenaw County Zoning and Construction Codes Department (ZCCD) (keweenawcountyonline.org)
  14. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  15. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  16. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  17. Western UP Health Department — Houghton & Keweenaw Counties (wupdhd.org)
  18. Sewage System Permitting – Western UP Health Department, quoted and re-checked
  19. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  20. Disposal of residential wastewater such as swimming pool water (Michigan statewide rule), quoted and re-checked
  21. Keweenaw County Zoning & Construction Codes Department, quoted and re-checked
  22. Keweenaw County Road Commission (keweenawcountyonline.org)
  23. Effective property tax rate: Bolthole Index county data
  24. Median property tax bill: Bolthole Index county data
  25. Population density: Bolthole Index county data
  26. Wooded share of land: Bolthole Index county data

Written September 27, 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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County locator

Keweenaw County in Michigan

75
County map
Keweenaw County highlighted among the Michigan counties · colored by Index score

How Keweenaw County scores

Seclusion91100% ev.
Self-Sufficiency4798% ev.
Admin Boringness39100% ev.
Durability75100% ev.
Property Autonomy77100% ev.
Carry Cost8096% ev.

Evidence strength: 99%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$225kTypical home
0.9%Property tax
$4,084Land / acre
30.3"Annual rain
2.2% of yrsSevere drought
0.1 / yr (+0.1)Mid-century 100°F days
11.2 daysMid-century dry spell
1.33" (+11.1%)Mid-century 1-day rain
1.61×Wildfire change factor
100%Forward climate coverage
$992Home insurance / yr
-0.9% / yrInsurance growth
1.22%Nonrenewal rate
single ZIP shrunk to state medianInsurance basis
37,892People within 2 hr
2,156Radius comparison (15 mi)
4People / sq mi
63.1%Land at 15% slope or less
0%Septic soil without severe limits
94 acWorkable land screen
77.8%Wooded land
44.6 tonsBiomass / forest ac
40.4°FAvg temp

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Answers from the rulebook for Keweenaw County

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

Keweenaw County rules

  • Building permitLimited

    Construction in Keweenaw County.

    • Permits must be obtained before work starts.
    • Accessory structures of 200 square feet or less do not require a building permit but still require a zoning permit.
    • The page lists specified repair and minor-work exceptions.

    accessory-structure building-permit threshold: <= 200 square feet (A zoning permit is still required.)

    “You are required by law to get permits for construction in Keweenaw County”
  • Building code adoptedAdopted (with conditions)

    Construction subject to the county permit process.

    • The county page identifies the 2003 Michigan Building Code/Incorporating the National Building Code among its permits laws and regulations.
    “2003 Michigan Building Code/Incorporating the National Building Code”
  • Certificate of occupancyRequired

    Occupancy of buildings other than listed residential exceptions.

    • Single-family homes, individual apartment units, and individual office suites do not require certificates of occupancy.
    • A new certificate is required after new construction or alteration, or changes in ownership, occupancy load, or use.
    • The certificate must be obtained before occupation and posted onsite.
    • It is issued when construction is complete and final inspection reports have been forwarded to the county building inspector.
    “You must get a Certificate of Occupancy before occupation and use of the building.”
  • County-wide zoningPresent (with conditions)

    County-administered zoning in Grant, Sherman, Houghton, and Allouez Townships and Ahmeek Village.

    • Eagle Harbor Township has its own zoning regulations.
    “The Keweenaw County Zoning Ordinance regulates zoning in Grant, Sherman, Houghton, Allouez Townships and Ahmeek Village.”
  • Local zoningVaries (with conditions)

    Aggregate of zoning administered by the county and Eagle Harbor Township within Keweenaw County.

    • County zoning applies in Grant, Sherman, Houghton, and Allouez Townships and Ahmeek Village.
    • Eagle Harbor Township has separate zoning regulations.
    “Eagle Harbor Township has its own zoning regulations.”
  • Zoning districtsPublished (with conditions)

    County-administered zoning areas.

    • Eagle Harbor Township maintains separate zoning districts.
    “The following zoning districts are explained in Section IV of the Keweenaw County Zoning Ordinance.”
  • Minimum lot sizeDistrict specific (with conditions)

    County-administered zoning districts.

    • The Agricultural Zoning District has a five-acre minimum lot size.
    • Other dimensional standards are identified by the county as ordinance-table matters.

    Agricultural Zoning District minimum lot size: 5 acres

    “A minimum lot size for Agricultural Zoning District is five (5) acres.”
  • SetbacksDistrict specific (with conditions)

    County-administered zoning districts.

    • A 75-foot high-water-mark setback applies to lakefront or riverfront structures except in RS-1.
    • Setbacks vary by zoning district and some may be varied by appeal.

    lakefront or riverfront high-water-mark setback: 75 feet (Zoning district RS-1.)

    “These distances vary within each zoning district.”
  • Lot coverageDistrict specific (with conditions)

    County-administered zoning districts.

    • The county directs users to Article 5, Tables 5-1, 5-2, or 5-3 for maximum lot coverage.
    “minimum lot width, maximum lot coverage, maximum height of structures”
  • Who permits septicLocal (with conditions)

    On-site sewage systems in Keweenaw County and the other WUPHD constituent counties.

    • WUPHD is a multi-county special governmental unit.
    • The district serves Keweenaw County residents.
    “the installer will contact the health department to initiate a final inspection.”
  • Septic permitRequired

    New or replacement on-site sewage systems serving Keweenaw County.

    • A site evaluation must deem the parcel suitable.
    • A complete application must be submitted and approved and appropriate fees paid before construction begins.
    “the next step is to apply for a septic system permit.”
  • Septic inspectionRequired

    Newly completed on-site sewage systems serving Keweenaw County.

    • The installer contacts the health department to initiate the final inspection.
    • The system cannot be covered until final approval and an approved tag are provided.
    “A sanitarian will visit the site and inspect the installation of the system”
  • Off-grid sanitationLimited

    New construction requiring a county zoning permit.

    • New construction requires a valid well and septic permit or an existing well and septic before the zoning permit is granted.
    “All new construction requires a valid well and septic permit or existing well and septic prior to granting a zoning permit.”
  • Well permitRequired

    Private water-well construction serving Keweenaw County.

    • A complete application must be submitted and approved and appropriate fees paid before construction starts.
    • Final well-construction inspection is performed on at least 10 percent of permitted wells.

    final well inspection sampling rate: >= 10 percent (Of all wells permitted.)

    “the next step in the process is the application for a water system construction permit.”
  • Permit feesPublished (with conditions)

    County zoning permit applications.

    • The published amount is for the zoning permit application; the page separately requires permit-fee payment with applications.

    zoning permit application fee: 50 USD

    “Step 1 - Zoning Permit Application ($50 fee)”
  • Permit processPublished (with conditions)

    County zoning and building permit applications.

    • Applications may be emailed or hand-delivered with site plan, required information, and permit-fee payment.
    • Approved zoning permits precede building-permit applications.
    • Final building-permit approval requires relevant disciplines and external agencies to approve and stamp plans.
    • The county says to allow five business days when documentation is proper, including a contractor certificate if required.

    stated processing allowance: 5 business days (When the application has proper documentation, including a Contractor's Certificate if required.)

    “Allow five (5) business days if the application is accompanied with proper documentation”
  • Owner-builder exemptionNot available

    The county states permits are required "whether you're making repairs yourself or hiring a contractor," indicating no self-build exemption from permitting.

    Keweenaw County Zoning & Construction Codes ↗Scouted from the county site, not yet independently re-checked

Michigan rules that apply here

  • Mandatory utility hookupConditional

    Buildings and premises in Michigan that have plumbing fixtures or drainage piping.

    • Connection must be to a public sewer where available, or otherwise to an approved private sewage disposal system.
    • Plumbing work cannot begin until the appropriate enforcing agency issues a permit.
    • Local requirements may apply to water service and building sewer installation.
    “Every building in which plumbing fixtures are installed [...] shall be connected to a public sewer, where available, or an approved private sewage disposal system.”
  • Subdividing landRegulated (with conditions)

    Subdivision plats and the orderly development of subdivisions in Michigan.

    • The Michigan Office of Land Survey and Remonumentation administers applicable provisions of the Land Division Act, 1967 PA 288.
    • Staff conducts final reviews of plat maps for compliance with the Act.
    • Final plats are authorized for submission to the Register of Deeds for proper recordation.
    “Staff conducts final reviews of plat maps to ensure compliance with the Act and authorizes final plats to be submitted to the Register of Deeds for proper recordation.”
  • Campground & park staysLimited

    Tiny houses, including tiny houses built on wheels, proposed as resort cabins or similar occupancy in Michigan.

    • The source distinguishes tiny houses from recreational units and states they cannot be treated as recreational units even if built on wheels.
    • The tiny house must be built as a resort rather than a campground.
    • Local health department permitting for wells, septic tanks, and drainfields is required as applicable.
    • Local zoning, building, electrical, and plumbing permits and final approvals are required under local authorities.
    • The source does not establish statewide zoning permission or a statewide right to occupy a tiny house.
    “Local zoning, building, electrical, plumbing permits and final approvals under local authorities.”
  • county building authorityGeneral

    Michigan counties serving as building-code enforcing agencies for residential construction in unincorporated areas, subject to the Statewide Jurisdiction List and local/state jurisdiction assignments.

    • Before construction, a written building-permit application must be submitted to the appropriate enforcing agency.
    • A permit is also required when use or occupancy changes.
    • Ordinary repairs do not require a permit, but the stated structural, egress, plumbing, electrical, mechanical, and public-health/safety limitations apply.
    • The Michigan Building Code and Michigan Residential Code govern construction; county enforcement applies only where the Statewide Jurisdiction List designates county jurisdiction.
    “If COUNTY is indicated, that unit of government receives code enforcement services from a county enforcing agency.”

Still unanswered

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

  • Minimum dwelling size — Dwellings in county-administered zoning areas.
  • Camping on your land — Temporary camping on private land in Keweenaw County.
  • Tiny homes — Tiny-home occupancy in county-administered zoning areas.
  • Accessory dwellings — Accessory dwelling units in county-administered zoning areas.
  • Agricultural exemption — Agricultural exemptions from county land-use or construction controls.
2 more unanswered
  • Driveway access
  • Building in a floodplain

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 Keweenaw County, Michigan

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

Keweenaw County scores 75/100 on the Bolthole Index, a strong county profile. Its strengths: deep seclusion — about 2,156 people within 15 miles and manageable long-term carry cost. Watch-outs: more administrative friction around building and land use.

Do you need a building permit in Keweenaw County, Michigan?

Keweenaw 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 Western Upper Peninsula Health Department. 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 Keweenaw County, Michigan?

Land in Keweenaw County runs about $4,084 per acre, based on the latest county data.

What is the water situation in Keweenaw County?

Keweenaw County gets about 30.3" of rain a year, with severe drought in roughly 2.2% of years.

How remote is Keweenaw County?

A typical private-land location has about 2,156 people within 15 miles and 289,511 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

Going off-grid in Keweenaw County means bringing your own water and power. The kit we’d start with:

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How Keweenaw compares in Michigan

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