Off-Grid Living in Eaton County, Michigan

I'll be straight with you: Eaton County, Michigan is in the middle of an unusual structural shift, and it matters a lot for anyone planning to live off-grid here. As of July 1, 2026, Eaton County stopped administering planning and zoning altogether. That means the county's old unified Land Development Code and its Zoning Board of Appeals no longer decide what you can do on raw land, what dwelling types are allowed, or whether you can park an RV or tiny home on your property. That authority now sits entirely with your township, city, or village. If you're eyeing a parcel in, say, Windsor Township versus Eaton Rapids Township, you could get two very different answers, and you need to call that specific local office, not the county, to find out.

What the county still handles: building permit inspections (through the Eaton County Department of Construction Codes) and septic/well permitting (through the Barry-Eaton District Health Department, or BEDHD, which is not a county office itself but a joint district health agency). These functions are unaffected by the zoning handoff.

On septic, BEDHD's sanitary code requires a permit before you build, alter, or replace any individual sewage system, and it explicitly says no building permit or construction can move forward on land without public sewer/water until sewage permits are secured or the Health Officer signs off. That's a real barrier to fully "off-grid" occupancy of a new dwelling here. Composting toilets aren't separately addressed in what I found, so I'd call BEDHD directly before assuming one will satisfy them.

Wells work similarly: BEDHD issues construction permits after site evaluation, does a final review once the well's in, and re-inspects Type II wells every five years. If you're planning a higher-capacity well (70 gallons per minute or more), the state's EGLE gets involved via its Water Withdrawal Assessment Tool.

Greywater and rainwater harvesting don't have dedicated county rules that I could locate. BEDHD paperwork implies greywater from things like water softeners or sump pumps has to be routed away from your septic system, but there's no standalone greywater ordinance, so the state plumbing code baseline is your best guide, and I'd confirm specifics with BEDHD. Rainwater harvesting appears to default entirely to the state code, with nothing county-specific on record.

Worth noting: Eaton County used to run a mandatory septic/well inspection program tied to property sales (TOST), but that was rescinded around 2018. Oversight now leans on the base sanitary code and complaints rather than automatic inspections at sale.

Bottom line for off-grid planning here: your zoning question is a township question now, full stop, and your septic/well/building questions are county or district questions. Don't assume one office speaks for the other.