Off-grid site report

St. Joseph County, MI

41.7846, -85.4277 · 889 ft elevation
Read this before you act on anything below. This is my researched starting point for St. Joseph County, MI, not legal advice and not a guarantee. Rules change, and the deciding facts on any specific parcel (setbacks, perc results, overlay districts, deed restrictions, road frontage) live at the county or town office, not in any database. Before you buy land or build, confirm the current rules directly with the local zoning and health offices - the sources on this page tell you exactly who to call.

The local rulesSt. Joseph County, MI

Zoning & raw-land occupancy
Varies locallySt. Joseph County has no countywide zoning ordinance; each township (Park, Sturgis, Three Rivers, Constantine, etc.) adopts its own zoning under the state Zoning Enabling Act. You must check the specific township for your parcel. source
Dwellings, tiny homes & RVs
Unclear - verifyNo county-level source addresses tiny homes, minimum size, or RV occupancy; this is set township-by-township and follows the state Residential Code enforced via LARA. Not confirmed at the county level.
Building permits & codes
RestrictedThere's no single county building department for unincorporated areas; townships each run their own building department under the state code administered by LARA's Bureau of Construction Codes. Confirm with your specific township. source
Septic & composting toilets
RestrictedThe Branch-Hillsdale-St. Joseph Community Health Agency (BHSJ) issues permits for all sewage disposal facilities under its Environmental Health Code, and applications can be submitted through its online portal. source
Greywater reuse
RestrictedBHSJ's Environmental Health Code defines greywater (bath, laundry, dishwasher discharge) as part of regulated 'sewage' that must go to a permitted disposal system, so informal discharge isn't permitted.
Rainwater harvesting
Generally allowedNo county-specific restriction was found; rainwater harvesting appears to follow the general, generally permissive state plumbing code framework. Not separately confirmed for this county.
Private wells & water rights
RestrictedBHSJ administers well permitting following state well-construction standards set by EGLE, with applications available through BHSJ's online portal and county office contact.
Living disconnected from utilities
Unclear - verifyNo official document explicitly bans or allows full utility disconnection, but BHSJ's Environmental Health Code ties occupancy approval to having an approved water supply and sewage system, which functions as a practical limit on going fully off-grid.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average
4.5 hrs/day
Worst month (sizes an off-grid array)
2.4 hrs/day
Yearly output per 1 kW of panels
1,293 kWh
JFMAMJJASOND

Weather1991-2020

Precipitation
38 in/yr
Snowfall
30 in/yr
Heating degree days
6,595 (cold)
Frost-free season
Apr 30 to Oct 12

How far help isstraight-line

Hospital
Sturgis Hospital
1.3 mi
Fire station
Sturgis Fire Department
1.2 mi
Hardware store
Sturgis Ace Hardware
1.0 mi
Grocery
Walmart Supercenter
0.2 mi

From OpenStreetMap. Road miles will be longer, often much longer in hill country.

Plan this spot

These open with this location's real numbers already filled in (ZIP 49091).

Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt

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Sources: US Census Bureau geocoder; NLR PVWatts v8 (solar); NOAA NCEI 1991-2020 climate normals (nearest station) or Open-Meteo (ZIP-centroid) for weather; Open-Elevation; OpenStreetMap contributors. Public data retrieved Aug 22, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.