Building permits, zoning and septic rules in Bay County, Michigan
60Index Score / 100 #58 of 83 in Michigan
A building permit is required for construction or a change in use or occupancy in Bay County, Michigan, and the application goes to the enforcing agency assigned to the property1. Michigan's building code governs the work, while zoning requirements vary by city or township23. The Bay County Health Department's Environmental Health Division issues permits for sites without municipal sewer service and inspects onsite sewage systems before they are covered45.
At a glance
Building permit
Required for construction and changes in use or occupancy; apply to the assigned enforcing agency1
Building permit issuance, plan review and construction inspections, and zoning administration for Bangor Township; Bay County's other townships each run their own separate building and zoning office
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Do you need a building permit in Bay County, Michigan?
Yes. A person constructing a building or structure, or changing its use or occupancy, must submit a written building-permit application to the appropriate enforcing agency in Bay County1. Ordinary repairs are exempt only when they do not involve the listed structural, egress, plumbing, electrical, mechanical, public-health or safety exceptions1. Michigan's building code governs construction, alteration, addition, repair, removal, demolition, use, location, occupancy and maintenance, with one- and two-family dwelling provisions in the Michigan Residential Code2. Michigan's owner-builder licensing exemption applies when a person builds on their own property for their own use and occupancy, but it does not remove permit, inspection, code, zoning or utility requirements6. A new or altered building cannot be occupied until the code official issues a Certificate of Occupancy after required permits are finaled and fees are paid8.
Who issues building permits in Bay County, and how do you reach them?
The correct permit counter depends on the enforcing agency assigned to the property; Michigan recognizes state, county and local enforcing agencies2. Bangor Township is one confirmed local example: its Building & Zoning Department reviews plans, issues permits and inspects construction for compliance with state building codes and local ordinances11. The Bangor Township office is at 180 State Park Drive, Bay City, MI 48706, and its phone number is (989) 684-893111. A Michigan jurisdiction listing may instead designate a county enforcing agency where a local unit does not provide its own code enforcement12. Identify the city or township for the parcel first, then ask that local government which enforcing agency receives the application; do not assume the Bangor Township office serves land outside Bangor Township11.
Does Bay County have zoning?
Zoning requirements across Bay County vary by city or township, and the county directs land-division applicants to consult the applicable city or township assessor3. Michigan's zoning framework allows counties, townships, cities and villages to establish zoning districts, but the framework does not supply the actual district rules for a particular parcel13. Setbacks, permitted uses, minimum dwelling size, lot coverage, building height and accessory-dwelling rules therefore need to be checked with the city or township responsible for the parcel; we could not confirm countywide standards for those questions3. Frankenlust Township is one confirmed example: its zoning ordinance sets a minimum floor area of 750 square feet per dwelling in the listed rural districts and 720 square feet in the listed residential and business districts14. A residential lot in a Frankenlust Rural or Residential District without municipal sewer and water must be at least one acre and also meet Bay County Environmental Health septic requirements15. Front, side and rear setbacks there vary by district16. Those figures apply only inside Frankenlust Township. Before buying, identify the municipality, zoning district and proposed use, then obtain the applicable local ordinance answer in writing.
How do septic permits work in Bay County?
The Bay County Health Department's Environmental Health Division administers onsite sewage disposal in Bay County4. For a building site without municipal sewer service, secure the department's permit before beginning work and check with the township for any additional local requirements4. The department must conduct a final inspection of an onsite sewage system before the installation is covered5. The department processes a completed septic application within 21 calendar days after receiving the fee, subject to workload, weather and winter soil conditions, and a new owner or a changed system location needs a new permit because permits do not transfer.17 A septic system must sit at least 50 feet from water supply wells.17 Bay County's published Environmental Health fee schedule lists $306 for a new septic permit, and it adds a penalty of 100% of the original fee if work starts before the permit is issued18. A new water-supply well also needs a Health Department permit before work begins and must be installed by a Registered Well Driller19. Every building with plumbing fixtures must connect to a public sewer where one is available, or otherwise to an approved private septic system, and sanitary sewage cannot use an arbitrary off-grid disposal method920. Only about 0.8% of Bay County's soils are rated free of severe limits for a conventional septic drain field, so make septic feasibility an early purchase contingency7. The soil rating supports planning for careful site evaluation, but the Health Department should determine what system a specific parcel can support4.
Can you live in an RV or tiny home on your land in Bay County?
We could not confirm a countywide rule allowing RV occupancy or temporary camping on private land in Bay County, and local zoning varies by city or township3. Michigan guidance for tiny houses used as resort cabins says that a tiny house is not a recreational unit even when built on wheels and requires local zoning, building, electrical and plumbing approvals10. That guidance does not establish a general right to occupy a tiny house on a private Bay County parcel10. Ask the city or township zoning office about residential use, duration limits and placement before buying or moving an RV or tiny home onto the land; Bangor Township's Building & Zoning Department is relevant only for parcels in Bangor Township11.
Building a home in Bay County: the steps, in order
Identify the city or township and ask which building-code enforcing agency serves the parcel2.
Confirm the local zoning district, setbacks and allowed use with that city or township because local zoning varies across Bay County3.
Submit the building-permit application to the assigned enforcing agency before beginning regulated construction1.
If municipal sewer is unavailable, secure the onsite sewage permit from the Bay County Health Department before beginning work4.
Leave the onsite sewage system uncovered until the Health Department completes its final inspection5.
If the project divides or develops land, complete the local subdivision review and account for Bay County Drain Commissioner review of stormwater facilities21.
Complete required building inspections and obtain the Certificate of Occupancy before moving in228.
What to check before you buy land in Bay County
Only about 0.8% of Bay County soils are rated without severe limits for a conventional septic drain field, so make septic feasibility an early purchase contingency7. Local zoning varies by city or township, so confirm the parcel's municipality, zoning district and allowed use before relying on a listing description3. A proposed land division or subdivision is regulated under the Michigan Land Division Act and local standards, while the Bay County Drain Commissioner reviews stormwater facilities for flood protection21. Property taxes have an effective rate around 1.6%, with a median annual bill near $2,2052324. Also verify legal access, floodplain constraints and driveway requirements with the responsible local offices because we could not confirm countywide rules for those issues.
Watch-outs
Building permits are required in Bay County, but the appropriate enforcing agency can be state, county or local, so confirm the assignment for the parcel before applying12.
Do not cover a newly installed onsite sewage system until the Bay County Health Department conducts its required final inspection5.
A land division or subdivision brings separate local standards and may require Bay County Drain Commissioner review of stormwater facilities21.
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.
Bay County highlighted among the Michigan counties · colored by Index score
How Bay County scores
Seclusion28100% ev.
Self-Sufficiency61100% ev.
Admin Boringness4290% ev.
Durability82100% ev.
Property Autonomy77100% ev.
Carry Cost78100% 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 →
$189kTypical home
1.6%Property tax
$5,313Land / acre
31.7"Annual rain
1.6% of yrsSevere drought
1.6 / yr (+1.6)Mid-century 100°F days
12.3 daysMid-century dry spell
1.51" (+10.3%)Mid-century 1-day rain
1.63×Wildfire change factor
100%Forward climate coverage
$1,025Home insurance / yr
-0.8% / yrInsurance growth
1.03%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
85,188People within 30 min
5,091,412People within 2 hr
128,990Radius comparison (15 mi)
231.7People / sq mi
0.1%Federal land
100%Land at 15% slope or less
0.8%Soils rated "not limited" for septic (strict USDA rating)
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Cities and towns in Bay 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.
What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.
Bay County rules
Local zoningVaries (with conditions)
Countywide aggregate of zoning administration in Bay County, including incorporated municipalities and unincorporated township areas.
This is an aggregate conclusion about subordinate local jurisdictions; the cited county ordinance expressly refers to land subject to city, village, or township zoning ordinances.
The Bay County source does not establish that Bay County administers one countywide zoning ordinance.
Parcel-specific zoning, dimensional standards, and procedures must be checked with the applicable city, village, or township.
“In Michigan, most local government functions - police and fire, building and zoning, tax assessment, street maintenance, etc. - are the responsibility of individual cities and townships.”
One more reviewed finding on this topic
Varies (with conditions) — Aggregate local zoning coverage across Bay County's individual cities and townships, including unincorporated areas governed by townships and incorporated municipalities governed by their own local authorities.
“In Michigan, most local government functions - police and fire, building and zoning, tax assessment, street maintenance, etc. - are the responsibility of individual cities and townships.”
Who permits septicCounty
Onsite sewage disposal permits and inspections in Bay County.
Township representatives should also be consulted regarding local regulations.
The county Health Department administers the onsite evaluation and permit process described on the page.
“If you are planning to build at a site located in Bay County which is not served by a municipal water supply and/or sewage collection system, you are required to obtain a permit from this department.”
Septic permitRequired
Onsite sewage disposal systems for building sites in Bay County not served by municipal water supply or sewage collection.
The permit must be secured before beginning work.
A soil site evaluation is conducted.
The permit contains specific minimum standards.
The system must be at least 50 feet from all water supply wells.
Changes from the permit require prior approval.
Permits are non-transferable; a new permit is required for a new owner or a changed OSDS location.
Applications are processed within 21 calendar days after a completed application and fee are received, subject to investigation, workload, weather, and winter soil conditions requiring a 5-foot trench.
minimum separation from water supply wells: >= 50 feet · application processing time: 21 calendar days (After completed application and fee are received; approval time may vary.)
“A Final Inspection of the onsite sewage disposal system installation must be conducted by this department prior to covering the system. In the interest of economy and providing an efficient service to you, the following policy for processing sewage permit applications has been adopted: All applications will be processed within a period of twenty-one calendar days from the time the completed application is received and the fee has been paid and receipted.”
Septic inspectionRequired
Installation of an onsite sewage disposal system in Bay County.
The final inspection must occur before the system is covered.
The county conducts a soil site evaluation before permit issuance.
The system must be at least 50 feet from water supply wells.
minimum separation from water supply wells: >= 50 feet
“Any changes from the permit issued by this office must first be approved. A Final Inspection of the onsite sewage disposal system installation must be conducted by this department prior to covering the system.”
Well permitRequired
New water-supply wells and qualifying construction sites in Bay County not served by municipal water supply.
The permit must be secured before beginning work.
The well must be installed by a Registered Well Driller.
New wells must comply with the Bay County Well Ordinance and Part 127, Act 368 of 1978, as amended.
The Health Department must be notified after installation for final inspection and water sampling.
A properly completed application receives a written decision within 14 working days.
application decision time: 14 working days (Upon receipt of a properly completed application.)
“Your water supply well must be installed by a Registered Well Driller. All new wells will be in compliance with the requirements of the Bay County Well Ordinance and Part 127 - Act 368 of 1978, as amended. Upon completion of your well installation, this department must be notified so a Final Inspection can be conducted, and water samples can be collected.”
Subdividing landRegulated (with conditions)
Subdivision development and related stormwater facilities in Bay County.
The Michigan Land Division Act is the main regulatory mechanism and standards are set by local governmental officials.
The County Drain Commissioner reviews stormwater facilities to protect subdivision landowners from flooding and prevent increased flooding outside the subdivision.
“the Land Division Act, provides the main regulatory mechanism”
Permit feesPublished (with conditions)
Bay County Environmental Health septic and well permits and related evaluations.
The cited schedule is titled Environmental Health 2023 Fees and is revised 12/20/22.
The schedule lists $306 for a new septic permit, $306 for a residential new or replacement well permit, and a penalty of 100% of the original fee for construction started before permit issuance.
new septic permit: 306 USD (Evaluation required; requires warrant deed.) · residential new or replacement well permit: 306 USD · construction-before-permit penalty: 100% of original fee (Septic or well construction site started before permit issued.)
Construction of a building or structure in Michigan, subject to exceptions in the Michigan construction code.
The owner, or the owner's builder, architect, engineer, or agent, must submit a written application to the appropriate enforcing agency before construction.
The application must use the commission-prescribed form, include the established enforcing-agency fee, contain a detailed affidavit-verified statement of specifications, include complete scaled plans, and include a site plan showing dimensions and locations of proposed and existing buildings or structures on the premises.
The act states 'Except as otherwise provided in the code'; specific exemptions require separate verification.
“Except as otherwise provided in the code, before construction of a building or structure, the owner, or the owner's builder, architect, engineer, or agent, shall submit an application in writing to the appropriate enforcing agency for a building permit.”
2 more reviewed findings on this topic
Required — Construction of a building or structure and changes in use or occupancy in Bay County.
“shall submit an application in writing to the appropriate enforcing agency for a building permit.”
Required — Construction of a building or structure, and changes in use or occupancy, in Bay County.
“Before construction of a building or structure, an owner, or the owner's builder, architect, engineer, or agent, shall submit an application in writing to the appropriate enforcing agency for a building permit. A permit is also required when the use or occupancy of a structure or portion thereof is changed.”
An individual erecting a residential structure for that person's own use and occupancy on that person's property in Bay County, subject to applicable permits and enforcing-agency requirements.
The exception concerns the residential-builder licensing definition and does not eliminate the building-permit requirement.
Before construction, a building-permit application must be submitted to the appropriate enforcing agency.
The exemption is limited to the person's own use and occupancy on the person's property; construction for another person or for compensation is outside the quoted exception.
“or a person who erects a residential structure or combination residential and commercial structure except for the person's own use and occupancy on the person's property.”
One more reviewed finding on this topic
Available (with conditions) — Michigan residential-builder licensing when an individual erects a residential structure or combination residential and commercial structure for the individual's own use and occupancy on the individual's property.
“or a person who erects a residential structure or combination residential and commercial structure except for the person's own use and occupancy on the person's property.”
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.”
3 more reviewed findings on this topic
Adopted — Construction, alteration, addition, repair, removal, demolition, use, location, occupancy, and maintenance of buildings and structures in Michigan, including Bay County.
“The Michigan Building Code controls all matters concerning the construction”
Adopted — Michigan Building Code applicable in Bay County.
“2021 Michigan Building Code -Current Code-Effective April 9, 2025”
Adopted — Michigan Building Code and Michigan Residential Code provisions applicable in Bay County.
“The Michigan Building Code controls all matters concerning the construction, alteration, addition, repair, removal, demolition, use, location, occupancy, and maintenance of all buildings and structures and their service equipment.”
InspectionsRequired
All construction undertaken pursuant to a building permit issued by an enforcing agency in Michigan.
The enforcing agency must periodically inspect the permitted construction.
Inspections are to ensure that construction complies with building-permit conditions, the code, and other applicable laws and ordinances.
The cited rule concerns construction undertaken pursuant to a building permit issued by the enforcing agency; it does not establish an inspection requirement for work exempt from permitting.
Inspection administration may be performed by the state or by a local enforcing agency according to the applicable jurisdictional assignment.
inspection frequency: periodic
“An enforcing agency shall periodically inspect all construction undertaken pursuant to a building permit issued by it to insure that the construction is performed in”
One more reviewed finding on this topic
Required — All construction undertaken pursuant to a building permit issued by a Michigan enforcing agency.
“An enforcing agency shall periodically inspect all construction undertaken pursuant to a building permit issued by it to insure that the construction is performed in accordance with conditions of the building permit and is consistent with requirements of the code and other applicable laws and ordinances.”
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.”
Zoning districtsPartial
Michigan's statutory zoning framework for counties, townships, cities, and villages; this does not identify the actual zoning districts adopted by each local government.
Actual zoning districts and district regulations are local and must be checked in the applicable county, township, city, or village ordinance.
The cited act's stated effective date is July 1, 2006.
“to provide for the establishment in counties, townships, cities, and villages of zoning districts;”
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.”
Agricultural exemptionConditional
Building-permit exemption for shade cloth structures constructed for nursery or agricultural purposes under Michigan Building Code Part 4.
The exemption applies to shade cloth structures constructed for nursery or agricultural purposes.
Service systems are excluded from the exemption.
The exemption does not authorize work violating the building code or other laws or ordinances of the jurisdiction.
“Exemptions from permit requirements of the code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of the code or any other laws or ordinances of this jurisdiction. Permits shall not be required for any of the following: [...] (x) Shade cloth structures constructed for nursery or agricultural purposes, not including service systems.”
Driveway accessRequired
Commercial and residential driveways constructed or reconstructed within Michigan state highway right-of-way and access to state trunkline highways.
An individual permit application package must be submitted through CPS.
The package includes the Drainage Design Checklist for Accessing State Trunklines (Form 2484), traffic analysis if applicable, traffic impact study if applicable, and preliminary local planning commission review if appropriate.
A driveway constructed or reconstructed after August 6, 1969, is not lawful unless a permit has been obtained.
A commercial driveway permit application requires a bond; a residential driveway permit does not require a bond.
If accessing a state trunkline highway, the driveway permit is required in addition to the local governmental agency building permit.
If upgrading a driveway or only building a new driveway, a driveway permit may be all that is necessary.
Driveway permit effective date threshold: 1969-08-06 (Driveways constructed or reconstructed after this date require a permit to be lawful) · Commercial driveway bond: true (Residential driveway permit does not require a bond)
“Applicants must submit an individual permit application package through the Construction Permit System (CPS) with the following: Drainage Design Checklist For Accessing State Trunklines (Form 2484) Traffic Analysis, if applicable Traffic Impact Study, if applicable Preliminary review by the local planning commission, for compliance with local long-range development plans, if appropriate A driveway constructed or reconstructed after August 6, 1969, is not lawful unless a permit has been obtained.”
Building in a floodplainRequired
Alteration or occupation of the 100-year floodplain of a Michigan river, stream, or drain regulated under Part 31.
The Part 31 permit requirement applies to rivers, streams, or drains with a drainage area of 2 square miles or greater.
A Part 31 EGLE permit is not required for alterations within floodplains of the Great Lakes, inland lakes, or watercourses with drainage areas less than 2 square miles, although other NREPA reviews may still be necessary.
Construction and fill may be permitted in non-floodway portions if local ordinances and building standards are met and compensating excavation is provided equal to the volume of fill placed in the floodplain.
New residential construction is specifically prohibited in the floodway.
The minimum residential elevation standard is one foot above the 100-year flood elevation, and some communities or counties may impose a higher standard.
Minimum drainage area for Part 31 floodplain authority: >= 2 square miles (Part 31 does not apply below this threshold) · Lowest-floor elevation: >= 1 foot above 100-year flood elevation (Some communities and counties may require a higher elevation)
“The Floodplain Regulatory Authority deals with the floodplains of rivers, streams, or drains which have a drainage area that is 2 square miles or greater. A permit is not required from EGLE, under Part 31, for alterations within the floodplains of the Great Lakes, inland lakes, or watercourses which have a drainage area less than 2 square miles.”
Permit processPublished (with conditions)
Building construction and changes in use or occupancy in Bay County, Michigan, subject to the appropriate enforcing agency identified for the specific location.
Before construction of a building or structure, a written application must be submitted to the appropriate enforcing agency for a building permit.
A permit is also required when the use or occupancy of a structure or portion thereof is changed.
Ordinary repairs do not require a permit, but the exception excludes cutting away walls or partitions; removing or cutting structural beams or bearing supports; removing or changing required means of egress; rearranging structural parts affecting exit requirements; and specified plumbing, electrical, mechanical, or other work affecting public health or general safety.
A set of construction documents is required with each permit application, although the building official may waive submission when code compliance can be determined from the application description.
Construction documents must generally be sealed and signed by an architect or professional engineer; the seal and signature are not required for one- and two-family dwellings under 3,500 square feet of calculated floor area and public works under $15,000 in total construction cost, subject to other statutory exceptions.
Permits may be checked and obtained online or by mail; applying by mail may cause delays.
The applicant should review the Statewide Jurisdiction List because code enforcement may be conducted by the state, county, or local unit of government; the application must be submitted to the appropriate enforcing agency.
one- and two-family dwelling construction-document threshold: < 3500 square feet of calculated floor area (Seal and signature are not required below this threshold.) · public works construction-document threshold: < 15000 USD total construction cost (Seal and signature are not required below this threshold.) · permit application method: online or by mail (Applying by mail may cause delays.)
“A building permit application must be submitted to the appropriate enforcing agency.”
3 more reviewed findings on this topic
Published (with conditions) — Michigan building-permit application process applicable in Bay County through the appropriate enforcing agency.
“A set of construction documents is required with each application for a permit. The submission of construction documents may be waived by the building official when code compliance can be determined based on the description in the application.”
Partial — Building-permit applications in Bay County where the appropriate enforcing agency is identified through Michigan's jurisdiction list.
“Prior to applying for a building permit, it is suggested the applicant review the Statewide Jurisdiction List. This information is updated regularly due to changes in the building code enforcement that may be conducted by either the state, county or local unit of government. A building permit application must be submitted to the appropriate enforcing agency.”
Published — Michigan Bureau of Construction Codes boiler, building, electrical, elevator, mechanical, and plumbing permit processing.
“The Inspections Division is responsible for issuing boiler, building, electrical, elevator, mechanical, and plumbing permits. Permits can be checked and obtained expeditiously online at: https://aca-prod.accela.com/lara/ . Additionally, permits can be obtained via mail; however, applying by mail may cause delays in the applications process.”
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.”
3 more reviewed findings on this topic
Limited — RV occupancy as part of a Michigan campground consisting of five or more recreational units used for temporary living quarters.
“requires a campground license when five or more recreational units (i.e., tents, campers, RVs) are placed on a parcel or tract of land”
Limited — Temporary camping in a Michigan temporary campground.
“A temporary campground license issued by the local health department (LHD) having jurisdiction is required prior to operating a temporary campground.”
Limited — Occupancy of RVs and other recreational units as temporary living quarters in a Michigan campground offering sites to the public or members of an organization, where 5 or more recreational units are involved.
“A campground owner shall ensure that a site is occupied by not more than 8 persons and by not more than 1 recreational unit.”
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.”
Inside cities and towns in Bay County
Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.
Local zoningPresent
Frankenlust Township, Bay County, Michigan.
The ordinance index identifies zoning materials but does not itself establish the contents of each zoning article or the applicable district standards.
“ZONING ORDINANCES Click on DOWNLOAD to view a Zoning Ordinance Zoning Ordinance Table of Contents-eff August 5, 2022 (pdf)”
Minimum dwelling sizeSpecified
Single-family and two-family dwellings in Frankenlust Township zoning districts.
The dimensional table applies by zoning district.
The ordinance states that the minimum floor area per dwelling unit is 750 square feet in listed rural districts, 720 square feet in listed residential/business districts, and refers to Section 8.10 for additional single-family and two-family dwelling standards.
The Article 8.0 residential-use standards became effective August 5, 2022.
Dwellings must also comply with applicable state construction code and Bay County Environmental Health Division requirements where applicable.
minimum floor area per dwelling unit in listed districts: 750 square feet (district-specific) · minimum floor area per dwelling unit in listed districts: 720 square feet (district-specific)
“Minimum Floor Area per Dwelling Unit (square-feet per unit) 750 750 750 750 720 720 720 Section 8.10”
Minimum lot sizeSpecified
Residential lots and dwellings in Frankenlust Township.
The minimum lot area varies by zoning district and whether public sewer is available.
For residential dwellings in a Rural or Residential District without municipal sanitary sewer and municipal water, the lot must be at least one acre.
The lot must satisfy all applicable Bay County Environmental Health Division requirements for private septic systems.
Floodplains, wetlands, bodies of water, watercourses, drainageways, steep slopes, and other unbuildable lands are excluded from net-density calculations.
minimum lot area: 43,560 square feet per unit (district-specific) · minimum lot area: 32,670 square feet per unit (district-specific) · minimum lot area: 20,000 square feet per unit (district-specific) · minimum lot area: 10,400 square feet per unit (district-specific) · minimum lot area: 7,200 square feet per unit (district-specific) · minimum lot area: 5,500 square feet per unit (district-specific) · minimum lot area without municipal sewer and water: >= 1 acre (Rural or Residential District residential dwellings)
“The minimum lot area for residential dwellings in any Rural District or Residential District not served by a municipal sanitary sewerage system and a municipal water system shall be not less than one (1) acre, and shall satisfy all applicable Bay County Environmental Health Division requirements for use of private septic systems.”
SetbacksSpecified
Structures and dwellings in Frankenlust Township zoning districts.
Front, side, and rear yard setbacks vary by zoning district.
The table lists minimum front yards of 50, 40, 30, 25, 20, and 30 feet depending on district; minimum side-yard values include one-side and total-of-two requirements; minimum rear yards range from 10 to 50 feet.
Required front yards are primarily for recreational and ornamental purposes, and permanent structures are generally prohibited there except for listed exceptions.
For existing blocks where more than 60 percent of lots have shallower front yards, a new principal building may use the average existing front-yard depth as specified.
Additional transition-buffer, accessory-structure, corner-clearance, and special-use requirements may apply.
minimum front yard: 50, 40, 30, 25, 20, or 30 feet (district-specific) · minimum side yard, one side: 25, 20, 10, or 5 feet (district-specific) · minimum side yard, total of two: 50, 40, 30, 25, 20, or 15 feet (district-specific) · minimum rear yard: 50, 40, 35, 20, or 10 feet (district-specific)
In Michigan, zoning is adopted by each township or city, so Bay County has no county-wide answer on these. Find your township or city in the list of places on this page, or call its clerk or zoning administrator.
Lot coverage
Building height
Living in an RV
Camping on your land
Tiny homes
Manufactured homes
Accessory dwellings
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 Bay County, Michigan
Is Bay County a good place to live off-grid or homestead?
Bay County scores 60/100 on the Bolthole Index, a solid county profile. Its strengths: a durable current and mid-century hazard profile and manageable long-term carry cost. Watch-outs: about 85,188 people within a 30-minute drive.
Do you need a building permit in Bay County, Michigan?
Bay County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Bay County Health Department, Environmental Health Division. 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 Bay County, Michigan?
Land in Bay County runs about $5,313 per acre, based on the latest county data.
What is the water situation in Bay County?
Bay County gets about 31.7" of rain a year, with severe drought in roughly 1.6% of years.
How remote is Bay County?
A representative private-land location has about 85,188 people within a 30-minute drive and 5,091,412 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.
