Bolthole Index

Shiawassee County, Michigan

Building permits, zoning and septic rules in Shiawassee County, Michigan

52Index Score / 100
#71 of 83 in Michigan

Shiawassee County, Michigan requires a building permit for construction and changes of use or occupancy in communities where the county is the enforcing agency; ordinary repairs are exempt within stated limits.1 County zoning sets district-specific lot size, setback, coverage and height standards.2345 Septic permits go through the Shiawassee County Health Department's Environmental Health Division.6

At a glance

Building permit
Required where the county is the enforcing agency; confirm local jurisdiction1
Zoning
County districts publish lot size, setback, coverage and height standards72345
Septic permit
Issued by the County Health Department's Environmental Health Division, not the state6
Building code
2021 Michigan Building Code, effective since April 20258
Certificate of occupancy
Required before a new or altered building can be occupied9
Owner-builder exemption
Not confirmed by the county; ask before you apply10
Permit fees
County building and environmental-health fee schedules are published11
Land division access
Road Commission access review is required for a division proposal12

Who to call

Building permits

Shiawassee County Department of Community Development - Building & Trades

Zoning, building, electrical, plumbing and mechanical permit review and issuance, contractor registration and soil-erosion permits for new construction and improvements countywide

989.743.2396

[email protected]

201 N Shiawasse St, 3rd Floor, Corunna, MI 48817

Zoning

Shiawassee County Department of Community Development - Planning & Zoning

County zoning ordinance administration, site plan review, special use permits, variances and the Planning Commission and Zoning Board of Appeals

Septic permits

Shiawassee County Health Department - Environmental Health Division

Septic (onsite sewage) and private well permits for Shiawassee County under EGLE criteria

989.743.2390

201 N. Shiawassee St. - 3rd Floor, Corunna, MI 48817

Roads & driveways

Shiawassee County Road Commission

Right-of-way, driveway and land-division permits for roads under county road-commission jurisdiction

989-743-2228

701 West Corunna Avenue, Corunna, MI 48817-1229

Online permits →

Contact details are copied from each office’s official page and were checked against it on September 29, 2026.

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

Shiawassee County, Michigan requires a building permit before construction and for changes of use or occupancy in communities where the county is the enforcing agency.1 The county serves most communities, but jurisdiction can differ by community, so confirm the enforcing agency before filing.1 Ordinary repairs are exempt unless the work includes structural or egress changes or covered plumbing, electrical, mechanical or public-health work.1 The county enforces Michigan's construction code in the communities it serves, and the code governs construction, alteration, repair, use, location, occupancy and maintenance.13 The applicable statewide code is the 2021 Michigan Building Code, effective in April 2025, with residential requirements in the Michigan Residential Code.8 A new or altered building cannot be occupied until the code official issues a Certificate of Occupancy.9

Who is the Shiawassee County building department, and how do you reach them?

The Shiawassee County Department of Community Development runs Building & Trades from 201 N Shiawasse St, 3rd Floor, Corunna, Michigan; call 989.743.2396 or email [email protected].14 The county publishes processes for building permits, zoning and site-plan review, land divisions and environmental-health permits, and instructs applicants to contact the relevant office before submitting.15 Building permit jurisdiction varies by community, so ask Building & Trades whether the county is the enforcing agency for the parcel.1 County building fees are published in a schedule effective in July 2026, while the Environmental Health schedule is effective in January 2026 and adds a 3.5% credit-card fee.11 The Environmental Health Division is at 201 N. Shiawassee St. - 3rd Floor, Corunna, and its phone number is 989.743.2390.16

Does Shiawassee County have zoning?

Shiawassee County has an adopted zoning ordinance administered by the Community Development Department's Planning & Zoning division.17 The county publishes an official zoning map and district schedules, so standards depend on the parcel's district.7 Those schedules specify minimum lot area, setbacks, maximum lot coverage and building height, with variations by district, use and applicable modifications or variances.2345 For example, planned-unit-development standards set minimum lots of 20,000 square feet for an R-1A detached home and 12,000 square feet for an R-1B detached home; those figures are not universal county minimums.2 Planning & Zoning reviews development proposals, staffs the Planning Commission and Zoning Board of Appeals, and enforces zoning and land-use regulations.18 Ask the division to identify the controlling jurisdiction and district before relying on county standards for a parcel.19

How do septic permits work in Shiawassee County?

Septic and well permits in Shiawassee County go through the County Health Department's Environmental Health Division, not a state office.6 Michigan's EGLE oversees the onsite wastewater program statewide, but local health departments are the ones that actually permit and inspect septic systems, and some communities add their own ordinance requirements on top.20 Shiawassee County's Environmental Health Division works out of 201 N. Shiawassee St. - 3rd Floor, Corunna, and can be reached at 989.743.2390.16 Soils across the county rate poorly for a conventional septic drain field: 0% of Shiawassee County's soils avoid a severe limitation rating in the USDA soil survey.21 Budget for a site evaluation before you buy, and expect many parcels to need an engineered or mound system rather than a standard drain field.21 Michigan also requires that sanitary sewage from a home reach either a municipal sewer or a permitted onsite septic system, so there is no statewide allowance for improvised off-grid sanitation.22

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

Michigan does not give landowners a blanket right to live in an RV or tiny home on private land, and Shiawassee County's zoning ordinance controls what unincorporated parcels allow.17 State guidance to campgrounds and RV resorts is explicit that a tiny house, even one built on wheels, is not treated as a recreational unit and still needs local zoning, building, electrical and plumbing approval; that guidance covers resort and campground settings, not a right to occupy a tiny home on an ordinary rural parcel.23 Because zoning districts and their allowed uses are set locally rather than by one state rule, whether long-term RV living or a tiny home is allowed on a specific parcel depends on that parcel's zoning district.19 Call the Community Development Department's Planning & Zoning division before you buy if you plan to live in an RV or tiny home while you build.18

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

  1. Call Community Development at 989.743.2396 to confirm the parcel's zoning jurisdiction, district and building-code enforcing agency.141
  2. Review the applicable district schedule for lot size, setbacks, lot coverage and height before designing the home.72345
  3. Contact Environmental Health at 989.743.2390 for septic review and ask whether a well permit is needed.166
  4. Obtain Road Commission approval if the project includes a land division access review or work in a county-road right-of-way.1224
  5. Submit the required application, fee and supporting materials to the relevant office; the county publishes processes for building, zoning, site-plan, land-division and environmental-health applications.1511
  6. Complete the permitted work and final inspections, then request the Certificate of Occupancy before moving in.9

What to check before you buy land in Shiawassee County

Confirm septic feasibility first: none of Shiawassee County's mapped soils avoid a severe limitation rating for a conventional drain field, so arrange a site evaluation before closing.21 Confirm the zoning district and its lot size, setbacks, coverage and height standards with Planning & Zoning.72345 A land division requires an application, official survey, five years of tax-payment certification, Road Commission access approval, supporting materials and payment before final recording through the Register of Deeds.25 Typical home values are about $214,722, while the median property-tax bill is about $2,214 a year at an effective rate near 1.3%.262728 Farmland value averages about $6,037 per acre, and typical homeowners insurance is about $1,208 a year.2930

Watch-outs

  • Shiawassee County has not published a confirmed owner-builder exemption from its building-permit requirement, so ask the Department of Community Development directly before you plan to act as your own contractor.10
  • The state tiny-house guidance cited here applies to campgrounds and RV resorts, not to an ordinary rural parcel, so do not treat it as a statewide right to live in a tiny home on your own land without checking Shiawassee County zoning first.23

Sources

  1. Building & Trades, quoted and re-checked
  2. Shiawassee County Zoning Ordinance, quoted and re-checked
  3. Shiawassee County Zoning Ordinance, quoted and re-checked
  4. Shiawassee County Zoning Ordinance, quoted and re-checked
  5. Shiawassee County Zoning Ordinance, quoted and re-checked
  6. Shiawassee County Health Department - Environmental Health (2026 county census)
  7. Shiawassee County Zoning Ordinance, quoted and re-checked
  8. Code Books (Michigan statewide rule), quoted and re-checked
  9. Certificate of Occupancy Request (Michigan statewide rule), quoted and re-checked
  10. (2026 county census)
  11. Building & Trades, quoted and re-checked
  12. Land Division Process, quoted and re-checked
  13. Building Permit Information, quoted and re-checked
  14. Shiawassee County Department of Community Development - Building & Trades (shiawassee.net)
  15. Building & Trades, quoted and re-checked
  16. Shiawassee County Health Department - Environmental Health Division (shiawasseechd.net)
  17. Shiawassee County (MI) Zoning Ordinance (2026 county census)
  18. Shiawassee County Department of Community Development - Planning & Zoning (shiawassee.net)
  19. Michigan Zoning Enabling Act (Michigan statewide rule), quoted and re-checked
  20. Michigan Guide to Environmental Regulations, Chapter 3: Wastewater (Michigan statewide rule), quoted and re-checked
  21. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  22. Disposal of residential wastewater such as swimming pool water (Michigan statewide rule), quoted and re-checked
  23. 2022 ARVC - General (Michigan statewide rule), quoted and re-checked
  24. Shiawassee County Road Commission (shiawasseeroads.com)
  25. Land Division Process, quoted and re-checked
  26. Typical home value (Zillow): Bolthole Index county data
  27. Median property tax bill: Bolthole Index county data
  28. Effective property tax rate: Bolthole Index county data
  29. Farmland value per acre (USDA census): Bolthole Index county data
  30. Typical home insurance premium: Bolthole Index county data

Written September 29, 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

Shiawassee County in Michigan

52
County map
Shiawassee County highlighted among the Michigan counties · colored by Index score

How Shiawassee County scores

Seclusion19100% ev.
Self-Sufficiency64100% ev.
Admin Boringness4190% ev.
Durability82100% ev.
Property Autonomy77100% ev.
Carry Cost75100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$215kTypical home
1.3%Property tax
$6,037Land / acre
33.9"Annual rain
0.7% of yrsSevere drought
1.7 / yr (+1.7)Mid-century 100°F days
11.4 daysMid-century dry spell
1.5" (+8.6%)Mid-century 1-day rain
1.66×Wildfire change factor
100%Forward climate coverage
$1,208Home insurance / yr
0.2% / yrInsurance growth
0.59%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
98,805People within 30 min
8,130,815People within 2 hr
114,310Radius comparison (15 mi)
128.1People / sq mi
0.3%Federal land
99.7%Land at 15% slope or less
0%Septic soil without severe limits
15 acWorkable land screen
23.2%Wooded land
38.1 tonsBiomass / forest ac
47.9°FAvg temp

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Answers from the rulebook for Shiawassee County

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

Shiawassee County rules

  • Building permitRequired

    Building construction and changes of use or occupancy in communities where Shiawassee County is the enforcing agency.

    • The State page says ordinary repairs do not require a permit.
    • Ordinary repairs do not include structural changes, changes affecting egress, or listed plumbing, electrical, mechanical, or public-health work.
    • The County department serves the majority of county communities; jurisdiction can differ by community.
    “Before construction of a building or structure, an owner, or the owner's builder, architect, engineer, or agent, shall submit an application”
  • Zoning districtsPublished

    County zoning districts and district-specific dimensional standards.

    • The ordinance refers to an official Zoning District Map and district schedules.
    • Numeric standards vary by district and applicable ordinance schedule.
    “SECTION 2.9 R-1A DISTRICT: ONE-FAMILY RURAL RESIDENTIAL”
  • Minimum lot sizeSpecified

    Lots in County zoning districts, including planned-unit-development and district-specific contexts.

    • Minimum lot area is district-specific.
    • Planned-unit-development standards include additional minimum lot-area rules.

    planned-unit-development R-1A one-family detached dwelling minimum lot area: >= 20000 square feet · planned-unit-development R-1B one-family detached dwelling minimum lot area: >= 12000 square feet

    “Minimum lot area & lot width for each building, structure, or use”
  • SetbacksSpecified

    Lots and structures in County zoning districts.

    • Setbacks vary by zoning district and use.
    • Additional buffer-strip and special-use requirements may apply.
    “All buildings located on a State or Federal highway and Lansing Highway, on platted or unplatted lots, are required to be setback”
  • Lot coverageSpecified

    Lots in County zoning districts.

    • Maximum lot coverage is specified in the applicable zoning-district schedule, subject to stated ordinance modifications and variances.
    “Max. total lot coverage, including accessory buildings, as a percent of lot size”
  • Building heightSpecified

    Buildings in County zoning districts.

    • Maximum height is specified in the applicable zoning-district schedule, subject to stated ordinance modifications and variances.
    “Max. height of building including accessory buildings”
  • Subdividing landRegulated (with conditions)

    Land divisions in Shiawassee County.

    • Applicants must provide a sketch, application, official survey, five years of tax-payment certification, Road Commission access approval, application materials, and payment.
    • Final recording occurs through the Register of Deeds after approval.

    tax-payment certification history: 5 years

    “This process authorizes the applicant to legally divide the property.”
  • Driveway accessRequired

    Access review for land-division proposals in Shiawassee County.

    • The official land-division process specifically requires Road Commission approval for Access Review using the official survey.
    “Obtain approval from Road Commission for Access Review using your official survey.”
  • Permit feesPublished

    County building and environmental-health permitting fee information.

    • The County Building & Trades page links a 2026 New Fee Schedule stated to be effective July 13, 2026.
    • The Health Department fee page states its schedule is effective January 1, 2026 and adds a 3.5% flat fee for credit-card payments.

    environmental health fee schedule effective date: 2026-01-01 · credit-card payment surcharge: 3.5 percent

    “2026 New Fee Schedule (Effective July 13th, 2026)”
  • Permit processPublished (with conditions)

    County building permits, site-plan review, zoning review, land divisions, and environmental-health permits.

    • Applicants are instructed to contact the relevant office before submitting applications.
    • Site-plan applications require an application, fee, packets, and required checklist materials.
    • Land divisions require survey, tax certification, Road Commission access approval, payment, and recording after approval.
    “Submit application, survey, road commission approval and tax statements with the Community Development Department for Zoning Approval.”
  • County-wide zoningPresent

    Shiawassee County has an adopted county Zoning Ordinance administered by the County Planning Commission governing land use and development.

    Shiawassee County (MI) Zoning Ordinance ↗Scouted from the county site, not yet independently re-checked

Michigan rules that apply here

  • Building code adoptedAdopted (with conditions)

    Construction, alteration, relocation, demolition, use, and occupancy of buildings and structures statewide in Michigan, including residential requirements administered under the Michigan Residential Code.

    • The current Michigan Building Code is the 2021 edition and is effective April 9, 2025.
    • The rule adopts the International Building Code by reference with Michigan amendments and exceptions.
    • The adopted rule excludes sections 104.2, 104.3, 104.8, 104.8.1, 104.10, 105.3, 105.3.1, 105.3.2, 105.6, 109.2 to 109.6, 111.2, 111.3, 113.2, 113.3, 113.4, 114.1, 114.2, 114.3, 114.4, 115.1 to 115.4, 423.5, 423.5.1, 423.5.2, 903.2.8.4, 2902 to 2902.6, Table 2902.1, section 3005.5, the definition of agricultural building in section 202, and the definition of recreational vehicle in Appendix G.
    • The rule also incorporates IECC 2021, IEBC 2021, IMC 2021, IPC 2021, IPSDC 2021, and NFPA 70 2023 as listed in chapter 35.
    • Residential requirements are contained in the Michigan Residential Code.
    • The code may be purchased from the International Code Council through the bureau website at a cost of $144.00 as of the time of adoption of the amendatory rules.

    building code edition: 2021 Michigan Building Code (Michigan amendments and listed exceptions apply) · effective date: 2025-04-09

    “The provisions of the international building code, 2021 edition, including appendices F, G, and H, except for [...] govern the construction, alteration, relocation, demolition, use, and occupancy of buildings and structures, and, with exceptions noted, the international building code is adopted by reference in these rules.”
    One more reviewed finding on this topic
    • Adopted — Michigan buildings and structures, including construction, alteration, repair, use, location, occupancy, and maintenance.
      “The Michigan Building Code controls all matters concerning the construction, alteration, addition, repair, removal, demolition, use, location, occupancy, and maintenance”
  • Certificate of occupancyRequired

    A new building or altered building subject to the Michigan construction code.

    • The building or altered building may not be used or occupied until the code official issues a Certificate of Occupancy.
    • The permit holder or authorized agent must submit a written request after project completion.
    • The request must include applicable building, electrical, mechanical, plumbing, boiler, elevator, plan-review, and school fire-services project numbers.
    • The certificate cannot be issued until all fees are paid, permits are finaled, and permitted work is completed in accordance with the permit, code, and applicable laws and ordinances.
    • If an electrical, mechanical, plumbing, boiler, elevator, plan-review, or Fire Services project is not required, the request must state “not applicable.”
    “A new building or a building that is altered shall not be used or occupied until a Certificate of Occupancy is issued by the code official.”
  • Who permits septicMixed

    Michigan statewide onsite sanitary wastewater systems.

    • EGLE oversees the onsite wastewater program and coordinates administration with local health departments.
    • Local health departments permit and inspect onsite sanitary wastewater systems.
    • Some communities may have additional local ordinance requirements.
    “EGLE’s Onsite Wastewater Program oversees the discharge and permitting of sanitary wastewaters to on-site septic systems.”
  • Off-grid sanitationLimited

    Residential sanitary sewage disposal in Michigan without connection to a municipal sanitary sewer.

    • Sanitary sewage from toilets, sinks, showers, washing machines, and dishwashers must be directed to a municipal sanitary sewer or an onsite septic system.
    • An onsite septic system is subject to the EGLE-coordinated permitting and local-health-department permitting and inspection framework.
    • The source does not establish a statewide authorization for untreated discharge or arbitrary off-grid sanitation methods.
    “All sanitary sewage [...] must be directed to municipal sanitary sewer or to an onsite septic system.”
  • 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.”
  • 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.

  • Owner-builder exemption — Owner-builder licensing or permit exemptions applicable in Shiawassee County.
  • Living in an RV — Residential or long-term occupancy of recreational vehicles on private land in Shiawassee County.
  • Tiny homes — Tiny-home occupancy in Shiawassee County.
  • Accessory dwellings — Accessory dwelling units in Shiawassee County.
  • Septic inspection — Inspection requirements for on-site sewage disposal systems in Shiawassee County.
4 more unanswered
  • Well permit
  • Agricultural exemption
  • Building in a floodplain
  • Short-term rentals

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 Shiawassee County, Michigan

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

Shiawassee County scores 52/100 on the Bolthole Index, a solid county profile. Its strengths: mixed durability signals and a stronger property-autonomy legal backdrop. Watch-outs: about 98,805 people within a 30-minute drive and more administrative friction around building and land use.

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

Shiawassee County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Shiawassee County Health Department - Environmental Health Division. 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 Shiawassee County, Michigan?

Land in Shiawassee County runs about $6,037 per acre, based on the latest county data.

What is the water situation in Shiawassee County?

Shiawassee County gets about 33.9" of rain a year, with severe drought in roughly 0.7% of years.

How remote is Shiawassee County?

A representative private-land location has about 98,805 people within a 30-minute drive and 8,130,815 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.

Off-grid gear

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

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How Shiawassee compares in Michigan

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