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

Yes. Before constructing a building or structure in Saginaw County, the owner or agent must submit a written permit application to the appropriate enforcing agency; a change in use or occupancy also requires a permit¹. Ordinary repairs are exempt only when they do not involve the listed structural, egress, trade-system, public-health or safety work¹. Michigan construction codes govern buildings statewide, with one- and two-family dwelling provisions in the Michigan Residential Code¹. Permitted construction is subject to periodic inspections by the enforcing agency⁸. A new or altered building cannot be occupied until the code official issues a certificate of occupancy after work is completed, permits are finalized and fees are paid⁷.

Saginaw County does not operate a county building-code program; the state jurisdiction list identifies local enforcement for municipalities such as Saginaw Township². For unincorporated Saginaw County land, start with the township containing the parcel to identify the building-code enforcing agency¹. Reese, a village mainly in Tuscola County that reaches into Saginaw County, handles its own building permits¹. Septic and private-well regulation stays with the Saginaw County Health Department throughout Saginaw County, including incorporated areas⁴. If you need help finding the local office, call the county main line at (989) 790-5200⁹. Building-permit applications require construction documents unless the building official waives them because the description establishes code compliance; state applications can be submitted online or by mail¹. Ask the enforcing agency for building-permit fees and inspection scheduling before ordering work.

Saginaw County does not conduct planning or zoning at the county level; townships, cities and villages handle those functions³. For unincorporated Saginaw County land, ask the township zoning office for the parcel's district and permitted uses³. Reese, a village mainly in Tuscola County that reaches into Saginaw County, administers its own zoning inside village limits¹⁰. The Saginaw County Health Department retains septic and private-well authority for Saginaw County addresses inside villages as well as townships⁴. No county zoning ordinance supplies minimum dwelling size, lot size, setbacks, lot coverage or building height for unincorporated Saginaw County, but local and state standards may still apply³. Obtain the local ordinance before relying on acreage or a nearby property's use.

The Saginaw County Health Department regulates onsite wastewater systems and private wells under the county Environmental Health Code⁴. Property without public water and sewage service needs a wastewater permit before a septic system is built or replaced, and the county issues it only when site conditions are acceptable⁵. A complete health application includes the registered deed, fees and notice that soil borings are complete; processing depends on the soil, water table, drainage and other environmental findings⁵. The residential septic permit is $570, while a residential Type III well permit is $265¹¹. A new or replacement private well also requires a county permit; the well application needs a site plan and fee⁵. The county inspects a completed septic system before it is covered⁵. Only about 1.8% of county soils are rated without severe limits for a conventional drain field, so request a site evaluation before buying¹².

Saginaw County sets no county zoning restriction on RV or tiny-home occupancy; the township, city or village administers applicable local land-use restrictions³. That does not establish permission to live in an RV or tiny home on a particular parcel³. Ask the local zoning office whether the district allows the proposed dwelling, long-term RV living or temporary occupancy during construction³. A tiny house proposed for occupancy still needs applicable local zoning, building, electrical and plumbing permits and final approvals¹³. Off-grid living does not avoid sanitation rules: a habitable property must connect to available public sewer, subject to the stated alternative-system exception, or obtain approval for onsite wastewater disposal^5,14.

1. Identify the township, city or village and obtain its zoning district and dimensional standards, because Saginaw County does not administer countywide zoning³.
2. Confirm the building-code enforcing agency and submit the building-permit application and required construction documents to that agency¹.
3. If public sewer is unavailable, submit the deed, fees and completed-soil-boring notice needed for county health review; obtain a county well permit if a new or replacement private well is planned⁵.
4. If the site lies wholly or partly in a regulated floodplain or wetland, secure the required state approval before the county health permit⁵.
5. Complete required building inspections and the septic inspection before covering the system^5,8.
6. Request the certificate of occupancy after permitted work is complete and permits and fees are final⁷.

Confirm the parcel's municipality, zoning district, permitted use, setbacks and minimum dwelling or lot standards with the local zoning office; Saginaw County itself supplies none of those zoning dimensions³. For land without public sewer, request a preliminary soil evaluation from the Health Department before closing⁵. A parcel in a regulated floodplain or wetland needs state approval before the county will issue its health permit⁵. Confirm whether the road is county-maintained or a state trunkline: work in county right-of-way requires a Road Commission permit, while a state-highway driveway requires an MDOT permit^15,16. Finally, verify whether public sewer is available because connection may be mandatory¹⁴.