A building permit is required before constructing a building or structure in St. Joseph County, Michigan, and the state, county or a local unit issues it depending on the parcel1. Zoning approval comes from each city, village or township, not the county2. Septic permits and well permits for every address, city or not, come from the Branch-Hillsdale-St. Joseph Community Health Agency34.
At a glance
- Building permit
- Required; apply to the enforcing agency assigned to the parcel1
- Zoning
- Local rules vary by city, village and township2
- Septic permit
- Required through Branch-Hillsdale-St. Joseph Community Health Agency5
- Well permit
- Required for an onsite residential water-supply system4
- Owner-builder exemption
- Available for a home built for the owner's own use and occupancy; permits and codes still apply6
- Certificate of occupancy
- Required before a new or altered building is used7
- Environmental-health fees
- $235 residential septic; $215 residential well on the schedule effective April 1, 2023; confirm current fees with BHSJ8
Who to call
Septic permits
Septic and well permits for St. Joseph, Branch and Hillsdale counties
1110 Hill Street, Three Rivers, MI 49093
Floodplain permits
Soil erosion and sedimentation control permits for earth-disturbing work near a watercourse or lake, and county drain projects
125 W. Main St., Centreville, MI 49032
Zoning
Park Township Zoning Administrator
Zoning permits and zoning-ordinance questions for Park Township, one of St. Joseph County's zoning townships
P.O. Box 30, Colon, MI 49040
Building permits
Park Township Building Official
Building permits and inspections for Park Township
62484 Kuhlmeyer Rd, Centreville, MI 49032
Contact details are copied from each office’s official page and were checked against it on October 11, 2026.
Off-grid gear
Going off-grid in St. Joseph County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
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Do you need a building permit in St. Joseph County, Michigan?
A St. Joseph County property owner must apply for a building permit before constructing a building or structure, and a permit is also required when a structure's use or occupancy changes1. Ordinary repairs may be exempt, but that exception does not cover work that crosses the cited structural, egress, utility, public-health or safety limits1. Michigan’s Building Code governs applicable construction in St. Joseph County; residential requirements are in the Michigan Residential Code910. Michigan's owner-builder exemption allows an individual to build on the individual's own property for personal use and occupancy, but it is a builder-licensing exemption—not an exemption from the building permit6. A new or altered building cannot be used or occupied until the code official issues a Certificate of Occupancy after completion, final permits and payment of fees7.
Who issues building permits in St. Joseph County, and how do you reach them?
Start with Michigan LARA’s Statewide Jurisdiction List to identify the enforcing agency for the St. Joseph County parcel11. Sturgis handles building permits and plan reviews through Community Development12. White Pigeon Township issues building permits only after a zoning inspection13. Septic and well permits remain with the Branch-Hillsdale-St. Joseph Community Health Agency14. In Park Township, call the Building Official at 269-816-495115. LARA publishes a building-permit fee schedule and offers online application and permit checks through its portal; confirm the parcel’s enforcing agency before using the state route1611.
Does St. Joseph County have zoning, and who sets it?
In unincorporated St. Joseph County, ask the township about parcel-level zoning; incorporated cities and villages make their own land-use decisions, while county planning is advisory2. Sturgis, Three Rivers and Village of Constantine have their own zoning171819. Onsite septic and well permitting stays with the Branch-Hillsdale-St. Joseph Community Health Agency14. For Park Township zoning questions, call (269) 386-111020. In Leonidas Township’s A-1 district, the listed minimum dwelling floor area is 900 square feet and minimum lot area is 1 acre; other districts and dwelling types have different requirements2122. Ask the parcel’s zoning office about setbacks and accessory dwellings before designing.
How do septic and well permits work in St. Joseph County?
The Branch-Hillsdale-St. Joseph Community Health Agency administers onsite sewage permitting in St. Joseph County3. An onsite septic system requires a septic permit; BHSJ accepts online or paper applications235. The agency also requires a permit before an onsite water-supply well is installed244. For a new building served by septic, health-agency approval must come before the local construction permit; an application may require site maps, soil analysis, test borings, groundwater and flood elevations, nearby wells and detailed system plans25. Septic and well permits stay with the health agency even where a city, village or township issues the building permit14. The schedule effective April 1, 2023 lists $235 for residential septic and $215 for a residential well; confirm current charges with BHSJ8. Only about 3.1% of county soils have no severe limitation for a conventional drain field, so settle septic feasibility early26.
Can you live in an RV or tiny home on your land in St. Joseph County?
Michigan treats a tiny house as distinct from a recreational vehicle even when the tiny house is built on wheels27. A tiny house needs zoning, building, electrical and plumbing permits and final approvals from the authorities serving the parcel, plus health-department approval for a well or septic system when applicable27. St. Joseph County's cities, villages and townships make parcel-level land-use decisions, so ask the applicable local zoning office whether its ordinance permits the proposed use2. In Leonidas Township, occupying a travel trailer, motor home or camper for more than 24 hours is prohibited unless the use is permitted or approved as a special exception; the zoning administrator may issue a temporary permit for no more than 10 days28. We could not confirm a countywide RV-occupancy rule; ask the parcel’s township, city or village zoning office about living in an RV while building.
Building a home in St. Joseph County: the steps, in order
- Identify the township, city or village containing the parcel, then confirm the state or local enforcing agency assigned to issue its building permits1.
- Ask the applicable zoning office which district covers the parcel and whether the proposed home and accessory uses are allowed2.
- Apply to the health agency first if the project needs septic service; septic approval must precede the construction permit for a new building served by an onsite system25.
- Obtain the required well permit before installing an onsite water-supply system4.
- Submit the building-permit application with construction documents; the building official may waive those documents when the application description is enough to determine compliance29.
- Arrange the enforcing agency's required periodic inspections as permitted construction proceeds30.
- Submit a written request for the Certificate of Occupancy after completing the work, finalizing permits and paying fees7.
What to check before you buy land in St. Joseph County
Confirm the parcel's local jurisdiction and zoning district before buying because zoning and permit administration vary across St. Joseph County21. Test septic feasibility early: only about 3.1% of county soils have no severe limitation for a conventional drain field, and the health agency may require soil analysis, test borings, groundwater and flood elevations, and nearby-well information2625. If planned non-agricultural earth changes cover one acre or more within 500 feet of a watercourse or lake, contact the Drain Commissioner about soil-erosion oversight31. A driveway connecting to a state trunkline requires an MDOT permit in addition to the local building permit32. Ask EGLE about regulated river, stream or drain floodplains before planning construction or fill; new residential construction is prohibited in the floodway33.
Watch-outs
- Building permits in St. Joseph County may be administered by a state or local enforcing agency; identify the agency assigned to the parcel before applying1.
- A new building served by septic needs health-agency approval before the construction permit can issue25.
- Only about 3.1% of St. Joseph County's soils carry no severe limitation for a conventional septic drain field, so plan for a site evaluation before you assume a standard system will work26.
Sources
- Building Permit Information, quoted and re-checked
- St. Joseph County Master Plan – Update 2007, quoted and re-checked
- Sewage Disposal Systems, quoted and re-checked
- Water Wells and Water Testing, quoted and re-checked
- Sewage Disposal Systems, quoted and re-checked
- Frequently Asked Questions – Residential Builder (RB), quoted and re-checked
- Certificate of Occupancy Request, quoted and re-checked
- Environmental Health Services Fee Schedule, quoted and re-checked
- Code Books, quoted and re-checked
- Building Permit Information, quoted and re-checked
- Building Permit Information, quoted and re-checked
- Sturgis: Community Development (St. Joseph County), quoted and re-checked
- White Pigeon Township: Building Permit Information (St. Joseph County), quoted and re-checked
- Water Wells and Water Testing, quoted and re-checked
- Park Township Building Official (park-township.org)
- Building Permit Information, quoted and re-checked
- Sturgis: Community Development (St. Joseph County), quoted and re-checked
- Three Rivers: Building & Zoning – City of Three Rivers Michigan (St. Joseph County), quoted and re-checked
- Village of Constantine: Maps/Ordinances - Constantine, Michigan (St. Joseph County), quoted and re-checked
- Park Township Zoning Administrator (park-township.org)
- Leonidas Township Zoning Ordinance, quoted and re-checked
- Leonidas Township Zoning Ordinance, quoted and re-checked
- Well and Septic Applications and Fees, quoted and re-checked
- Sewage and Well Permit Application, quoted and re-checked
- Environmental Health Code, quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- michigan.gov (Michigan statewide rule), quoted and re-checked
- Leonidas Township Zoning Ordinance, quoted and re-checked
- Building Permit Information, quoted and re-checked
- courts.michigan.gov (Michigan statewide rule), quoted and re-checked
- St. Joseph County Drain Commissioner (County Enforcement Agent for soil erosion and sedimentation control) (stjosephcountymi.gov)
- Infrastructure permits (Michigan statewide rule), quoted and re-checked
- Floodplains (Michigan statewide rule), quoted and re-checked
Written October 11, 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.