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

Yes. New residential construction in Ontonagon County requires a building permit under Michigan's statewide construction codes¹. The building-permit application goes to the appropriate enforcing agency, which may be the state, county or local government¹. Ordinary repairs are exempt only when they do not involve structural, egress, plumbing, electrical, mechanical, public-health or general-safety work; a change in use or occupancy also requires a building permit¹. The Michigan Building Code governs covered buildings and structures, while the Michigan Residential Code contains the provisions for one- and two-family dwellings¹. Confirm the current jurisdiction for the parcel before filing¹.

Start with the Michigan LARA Bureau of Construction Codes Building Trades Section at 517-241-9313 or bccpermits@michigan.gov¹. Review the Statewide Jurisdiction List because building-code enforcement may be conducted by the state, county or a local government, and the building-permit application must go to the assigned enforcing agency¹. When state jurisdiction applies, building permits can be checked and obtained through LARA's online portal; mail applications are also available but may take longer¹. Construction documents generally must be signed and sealed, although the building official may waive them when the application description is enough to determine code compliance¹. Ask the Building Trades Section to identify the current building, electrical, mechanical and plumbing authority for the exact township and parcel before submitting plans⁹. Zoning approval remains a separate local question, while WUPHD retains septic and well jurisdiction in cities, villages and townships throughout Ontonagon County^2,3.

Zoning varies across Ontonagon County, and the applicable rule-maker is the parcel's township or village². The Village of Ontonagon, Interior Township and Bergland Township have local zoning, while the available record does not resolve every other township or establish one county-administered ordinance for all unincorporated land^2,4. Ontonagon Township zoning also directs development around the county airport¹⁰. Inside the Village of Ontonagon, obtain village zoning approval separately from the assigned building permit, and continue to use WUPHD for septic and well approvals^3,11. Village setbacks, lot sizes and dwelling sizes depend on the district: for example, an R-1 single lot needs 23,500 square feet, while R-2 single-family dwellings need 900 square feet of floor area¹². Village waterfront and yard setbacks are also district-specific¹².

The Western Upper Peninsula Health Department's Environmental Health Division evaluates proposed building sites and issues onsite sewage construction permits in Ontonagon County^3,5. A local government may not issue a building permit for premises needing a sewage system until the Health Officer gives permission³. For raw land, begin with the site evaluation; after the proposed site is approved, the landowner may apply for the sewage-system permit⁵. Contact the department's Ontonagon County office at 408 Copper St, Ontonagon, MI 49958 or 906-482-7382¹³. EGLE separately has direct septage-program oversight in Ontonagon County, and campground wastewater can require a local health-department permit or an EGLE permit or approval where applicable^14,15. Existing-system inspections are described mainly for real-estate transactions or a planned increase in sewage flow, not as a universal inspection of every existing system¹⁶. Only 0.4% of mapped county soils avoid severe limits for a conventional drain field, so settle septic feasibility early⁸.

We could not confirm a countywide rule allowing or prohibiting long-term RV living, temporary camping or tiny-home occupancy on private land in Ontonagon County⁴. Because zoning varies by township or village, ask the local zoning authority about occupancy, duration, placement, setbacks and whether a dwelling must be completed first². Michigan guidance does not create a statewide right to occupy a tiny house; for the resort-cabin context it covers, local zoning, building, electrical and plumbing permits and final approvals still apply, along with local health-department approval for wells and septic systems⁶. A tiny house on wheels is not automatically treated as a recreational unit under that guidance⁶. Within the Village of Ontonagon, district standards include dwelling-size, lot-size and setback rules, so a small house must be checked against its specific district¹². WUPHD separately controls the proposed septic and well setup throughout the county³.

1. Identify the parcel's township or village, then ask that local government for the applicable zoning district, zoning approval, setbacks and dwelling standards². In Stannard Township, a new driveway also requires a driveway permit from the Ontonagon County Road Commission¹⁷.

1. Contact the Western Upper Peninsula Health Department before fixing the house location. Obtain the sewage site evaluation and septic permit if the property needs onsite sewage, and obtain a water-supply construction permit before building a residential well or making an extensive change to an existing supply^3,5.

1. Review the Statewide Jurisdiction List or call Michigan's Building Trades Section to identify the enforcing agency, then submit the building-permit application before construction¹. An owner building on the owner's property for the owner's own use and occupancy can qualify for Michigan's residential-builder licensing exemption, but the exemption does not waive the building permit⁷.

1. Prepare the required construction documents and obtain any separate electrical, mechanical or plumbing permits; the building official may waive construction documents when the application description is sufficient to determine code compliance¹. Complete building inspections through the enforcing agency assigned to the parcel^9,18.

1. After permitted work is complete and fees are paid, request the certificate of occupancy before moving into the new home¹⁹.

Make septic feasibility a purchase contingency: only 0.4% of mapped soils avoid severe limits for a conventional drain field, and the health department must evaluate a proposed site before the septic-permit stage^5,8. If the parcel needs a private well, budget for the residential water-supply permit and complete that review before well construction begins³. Confirm the governing township or village, zoning district, minimum lot size, setbacks and dwelling standard because local zoning varies across Ontonagon County². For a Stannard Township parcel, confirm the driveway permit with the Ontonagon County Road Commission before assuming road access can be built¹⁷. A driveway connecting to a state trunkline requires a separate state driveway permit²⁰. The landscape is 91.4% wooded and 84.1% of the land has a slope of 15% or less, so clearing, winter access and the actual building envelope matter even on generally gentle ground⁸. Federal land covers 35.6% of the county, making a boundary survey and recorded-access review especially useful near public holdings⁸.