Alger County, Michigan requires a building permit for new homes, camps, garages, decks, porches and storage buildings through the county Building Codes Department1. Alger County does not administer countywide zoning; township, city and village rules vary by parcel23. Septic and well approvals come from the LMAS District Health Department, and the required health approval comes before the county building permit41.
At a glance
- Building permit
- Required for new homes, camps, garages, decks, porches, storage buildings and commercial work; ordinary repairs may be exempt15
- Zoning
- No countywide zoning; township, city and village rules vary, while Limestone Township is listed with no zoning23
- Septic permits
- LMAS District Health Department (Luce-Mackinac-Alger-Schoolcraft); must be approved before a county building permit issues46
- Well permits
- Also through LMAS District Health Department before drilling7
- Certificate of occupancy
- Required statewide before using or occupying a new or altered building; $50 county fee89
- Driveway permit
- Required where a driveway connects to a county or state road10
- Agricultural buildings
- A building incidental to agricultural use may be permit-exempt if it is not used for retail trade; other approvals can still apply11
- Off-grid sanitation
- LMAS does not permit cesspools, lagoons, pump-and-haul, or waterless (composting, incinerating, dry-flush) toilets; a remote privy may be allowed subject to township rules1213
Who to call
Building permits
Alger County Building Codes Department
Building, electrical, mechanical and plumbing-adjacent building permits, plan review, inspections, 911 address signs, driveway permits on county or state roads, and certificates of occupancy for Alger County
101 Court Street, Munising, MI 49862
Septic permits
LMAS District Health Department, Alger County Office
Sewage disposal (septic) construction permits, site evaluations, facility evaluations, and well permits/notifications for Alger County
E9526 Prospect St., Munising, MI 49862
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 Alger County, Michigan?
Yes. The Alger County Building Codes Department issues building permits for new construction and alterations to homes, camps, garages, decks, porches and storage buildings, and all commercial work requires a permit114. Michigan also requires a permit before constructing a building or changing its use or occupancy, although ordinary repairs may qualify for an exception5. Alger County enforces building and electrical codes, while mechanical and plumbing are state jurisdictions15. An agricultural building can be exempt from the building permit when it is incidental to agricultural use of the land and is not used for retail trade, but that exemption does not waive zoning, septic, soil-erosion, driveway, electrical, mechanical or plumbing requirements11. Health approval for a well or septic comes before the building permit, and separate soil-erosion approval applies within 500 feet of a lake or stream or for excavation of at least 1 acre1.
Who is the Alger County building department, and how do you reach them?
The Alger County Building Codes Department, run by the county's Building Codes Inspector, is at 101 Court Street, Munising, MI 49862, reachable at (906) 387-2727 or [email protected]14. This same office issues driveway permits for any access onto a county or state road, and 911 address-sign applications tie in through the county Sheriff's Department1416. Applications need two sets of construction documents, though a licensed design professional's seal isn't required for most one- and two-family dwellings under 3,500 square feet17. The first $100 of a permit application is non-refundable, a re-inspection runs another $100, and a certificate of occupancy costs $50 once the county signs off on your finished build9. Zoning is handled separately by your township, the City of Munising, or the Village of Chatham, not by this office, so you'll need to contact that local government too before you build1418.
Does Alger County have zoning?
Not at the county level. Alger County has no countywide zoning ordinance or county-administered zoning system2. Au Train, Burt, Grand Island, Mathias, Munising, Onota and Rock River Townships, the Village of Chatham and the City of Munising have separate zoning contacts, while Limestone Township is listed with no zoning3. Setbacks, minimum lot size, dwelling size, building height and permitted uses therefore depend on the parcel's local jurisdiction; the county materials do not provide one countywide set of dimensions19. No zoning in Limestone Township does not remove the county building permit or other state and health approvals1.
How do septic and well permits work in Alger County?
Septic and well approvals in Alger County go through the LMAS District Health Department, and the health approval is required before Alger County issues a building permit201. New, modified and replacement sewage systems need a permit and a site evaluation for soil suitability, placement and environmental impact2122. Only 2.5% of Alger County soils are rated without severe limitations for a conventional drain field, so make the site evaluation an early purchase contingency23. For an existing system, LMAS can review records and conduct an on-site evaluation; the tank generally must be pumped unless qualifying licensed-hauler records show pumping within the prior 3 years24. LMAS does not permit cesspools, lagoons, constructed wetlands, pump-and-haul, septic-tank-only systems or waterless toilets25. A privy is limited to a remote site without available utilities or plumbing and must comply with township and construction rules25. New, repaired and replacement residential wells also go through LMAS26.
Can you live in an RV or tiny home on your land in Alger County?
RV occupancy is local, not countywide. In Au Train Township, an RV may not be occupied longer than 180 days at a township location outside an approved campground27. In the City of Munising, one registered RV per lot may be used without a principal building for up to 120 total calendar days in H-1 and H-2 districts, or 30 total days in other applicable districts, with registration and setback conditions28. We could not confirm an RV-occupancy limit for the other townships or the Village of Chatham, so ask the relevant zoning administrator before relying on an RV during construction3. Michigan does not treat a tiny house on wheels as a recreational unit; applicable zoning, building, electrical, plumbing, well and septic approvals still apply29. The City of Munising allows one accessory dwelling unit of 200 to 600 square feet on a residentially zoned lot, subject to its design, parking, building and fire-safety standards30.
Building a home in Alger County: the steps, in order
First, confirm your township's zoning rules for the parcel, since the county doesn't set them and Limestone Township has none at all18. Second, order a septic and, if needed, well site evaluation from LMAS early, since most of the county's soils have severe limitations for a conventional drain field, then get LMAS's construction permit before applying to the county232221. Third, if you're within 500 feet of a lake or stream, or excavating an acre or more, get soil erosion and sedimentation approval6. Fourth, apply to the Sheriff's Department for your fire-number address sign, required to be visible from the street17. Fifth, submit your building permit application with two sets of construction documents to the Alger County Building Codes Department, along with the LMAS approval1417. Sixth, apply separately for any driveway permit if your access connects to a county or state road1416. Seventh, once construction is complete and all fees are paid, request your certificate of occupancy from the county before moving in89.
What to check before you buy land in Alger County
Confirm the parcel's township or municipality and its local zoning rules before buying, because Alger County has no single countywide zoning ordinance3. Only 2.5% of Alger County soils are rated without severe limitations for a conventional drain field, so make an LMAS site evaluation part of your due diligence23. Ask LMAS about the well location too: a residential well application must show the proposed well and contamination sources within 200 feet26. If the driveway will connect to a county or state road, confirm the required driveway permit and which agency will issue it10. For land in a regulated river, stream or drain floodplain, Michigan can require a Part 31 permit; new homes are prohibited in the floodway, while a residential floor in the 100-year floodplain must be elevated 1 foot above the flood elevation31. The effective property-tax rate is about 1%, and the median annual bill is about $1,6523233.
Watch-outs
- We could not confirm a general owner-builder licensing exemption for Alger County; ask the Building Codes Department before planning to serve as your own contractor3414.
- Au Train Township and the City of Munising have specific RV limits, but RV occupancy, tiny-home use, lot size, setbacks and height are not uniform across Alger County27283.
Sources
- Alger County Building Codes, quoted and re-checked
- Building Codes - Alger County, quoted and re-checked
- Building Codes - Alger County, quoted and re-checked
- LMAS District Health Department - Sewage Disposal (2026 county census)
- Building Permit Information, quoted and re-checked
- Alger County Building Codes, quoted and re-checked
- Before you start a well drilling business, quoted and re-checked
- Certificate of Occupancy Request, quoted and re-checked
- Application Building Permit and Plan Examination, quoted and re-checked
- Alger County Building Codes, quoted and re-checked
- STILLE-DEROSSETT-HALE SINGLE STATE CONSTRUCTION CODE ACT, quoted and re-checked
- Sewage Disposal - Public Health | LMAS District, quoted and re-checked
- Sewage Disposal - Public Health | LMAS District, quoted and re-checked
- Alger County Building Codes Department (algercounty.gov)
- Code Books, quoted and re-checked
- Alger County Building Codes, quoted and re-checked
- Alger County Building Codes, quoted and re-checked
- ALGER COUNTY ZONING ADMINISTRATION, quoted and re-checked
- Alger County Building Codes, quoted and re-checked
- Sewage Disposal - Public Health | LMAS District, quoted and re-checked
- Sewage Disposal - Public Health | LMAS District, quoted and re-checked
- LMAS District Health Department, Alger County Office (lmasdhd.org)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Application for Residential Sewage Disposal and Water Supply Systems, quoted and re-checked
- Sewage Disposal - Public Health | LMAS District, quoted and re-checked
- Application for Residential Sewage Disposal and Water Supply Systems, quoted and re-checked
- Au Train Township Zoning Ordinance, quoted and re-checked
- City of Munising Zoning Ordinance, quoted and re-checked
- 2022 ARVC - General (Michigan statewide rule), quoted and re-checked
- City of Munising Zoning Ordinance, quoted and re-checked
- Floodplains, quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- (2026 county census)
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.