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

Yes. Construction of a building or structure in Allegan County and any change in use or occupancy require a building-permit application to the appropriate enforcing agency¹. Qualifying ordinary repairs do not require a permit, but structural work, egress changes, and plumbing, electrical or mechanical work affecting health or safety are not ordinary repairs¹. Michigan's statewide construction code governs buildings and structures, with one- and two-family dwellings covered by the Michigan Residential Code¹. The Statewide Jurisdiction List assigns the enforcing agency by local unit and code discipline¹⁰. Permitted construction is periodically inspected, and a new or altered building cannot be occupied until the code official issues a Certificate of Occupancy^11,12.

Start with the township, city or village covering the parcel; Allegan County's directory directs building and zoning questions there². Check the Statewide Jurisdiction List before applying because enforcement may be handled by the state, county or local government¹. Most listed Allegan County local units handle building, electrical, mechanical and plumbing enforcement locally, but assignments can differ by discipline¹⁰. Submit the application to the assigned enforcing agency with construction documents; the building official may waive them when the project description is enough to determine code compliance¹. Ask that agency for its current application, fees and inspection sequence because we could not confirm one countywide fee schedule or timetable. Fees depend on that agency: where the Michigan Bureau of Construction Codes is the enforcing agency, its schedule sets a $75 building permit fee for work costing up to $1,000 and a $50 certificate of occupancy fee, and the first $100 of an application fee is non-refundable¹³. Septic and water-supply permit fees are set by the Allegan County Board of Commissioners, so ask the Health Department for the current schedule¹⁴.

Zoning applies in Allegan County, but the specific district and rules must be checked with the township, city or village covering the parcel^2,4. Michigan law provides a framework under which counties, townships, cities and villages may establish zoning districts; the statewide framework does not identify the district assigned to an individual Allegan County parcel¹⁵. Allegan Township, for example, has a Planning Commission and Zoning Board of Appeals, but its rules should not be treated as the rules for a different local unit⁴. We could not confirm countywide answers for minimum lot size, dwelling size, setbacks, lot coverage, building height, manufactured homes or accessory dwellings. Before buying or designing, ask the applicable local zoning office for the parcel's zoning designation, permitted uses and dimensional table, and request written confirmation for any unusual proposed use.

The Allegan County Health Officer administers onsite sewage-disposal permits throughout the county³. Obtain the permit before constructing, altering or extending a system; an approved application is not itself a permit, and permits are not transferable³. The Health Department warns that starting construction first doubles the permit fee¹⁶. Request inspection after the sewers, distribution lines and stone are placed but before any part is covered or operated³. An occupied premises must have an adequate sewage-disposal system, and sewage cannot be discharged onto the ground or into surface water, drains, ditches or storm sewers³. Only 3% of Allegan County soils are rated without severe limitations for a conventional drain field, so arrange the site evaluation early¹⁷.

We could not confirm a countywide rule allowing RV occupancy, temporary camping or tiny-home occupancy on private land in Allegan County. Because zoning is administered through local governments, ask the township, city or village covering the parcel about the exact use and duration you propose^2,4. Michigan guidance distinguishes tiny houses from recreational units and calls for local zoning, building, electrical and plumbing permits and final approvals, along with local health approvals for wells and septic where applicable⁶. That statewide guidance does not itself authorize full-time occupancy on a particular parcel. For an RV, ask whether camping is allowed before construction, whether occupancy has a time limit, and whether utility connections change the classification. For a tiny house, ask how the local ordinance classifies the unit, then confirm sanitation and Certificate of Occupancy requirements^12,18.

One state rule is easy to misread: a campground license is required where sites are offered to the public or members of an organization for five or more recreational units, and the state campground provisions do not relieve anyone from local building-permit rules or other local ordinances¹⁹. That rule governs campgrounds, not a single RV on your own land. Temporary campgrounds are limited to two weeks unless the local health department approves an extension, and the township, village or city may require special zoning approval²⁰.

1. Identify the township, city or village covering the parcel, then use the Statewide Jurisdiction List to identify the enforcing agency for each code discipline^1,2.

1. Obtain the parcel's zoning designation and written rules for use, setbacks, lot size and dwelling type; those details were not confirmed countywide⁴.

1. Contact the Allegan County Health Department for the septic evaluation and permit, and obtain a water-supply permit before constructing a private well unless public water will serve the premises before occupancy³.

1. Submit the building-permit application and construction documents to the assigned agency; the building official may waive documents when the description establishes compliance¹.

1. Call the Road Commission for a new driveway in its right-of-way and schedule the required site inspection; use MDOT's process for state-highway right-of-way^7,9.

1. Complete building inspections and request the septic inspection before covering the system, then obtain a Certificate of Occupancy before using the home^3,11,12.

Confirm jurisdiction first: the township, city or village covering the parcel is the starting point for building and zoning questions². Verify the local zoning designation, proposed home or RV use, setbacks and parcel dimensions in writing because those rules are not established countywide⁴. Test septic feasibility early; only 3% of county soils are rated without severe limits for a conventional drain field¹⁷. Confirm whether public water will be available, because a private supply for a habitable premises requires a county water-supply permit before construction³. New driveways in Road Commission right-of-way require a permit and physical site inspection, while driveways in state-highway right-of-way require an MDOT permit^7,9. Check flood exposure too: new residential construction is prohibited in a regulated floodway, and the minimum residential elevation is one foot above the 100-year flood elevation, though some communities require more²¹. Typical county figures are a 1.1% effective property-tax rate and a $2,799 median annual bill, but verify the parcel with the assessor¹⁷.