Off-Grid Living in Branch County, Michigan

If you're looking at land in Branch County, Michigan for an off-grid setup, the first thing I want you to understand is that there's no single "Branch County rulebook" for zoning. The county itself has no countywide zoning ordinance. Instead, each township, Quincy, Girard, Butler, Ovid, and the rest, runs its own zoning under authority granted by the state's Michigan Zoning Enabling Act (P.A. 110 of 2006). So whether raw land can simply be occupied, what kind of dwelling is allowed, and whether an RV or tiny home counts as a legal residence all depends on which township you're in. There's no shortcut here: you have to pull the specific township's ordinance and talk to that township's zoning office.

Where the county does step in directly is building permits. The Branch County Building Department enforces the state's construction codes (the 2015 Michigan Residential Code for houses) and requires a permit before you build, alter, move, or change occupancy of most structures. There are narrow exemptions, small detached accessory buildings and buildings used purely for agriculture, but even ag buildings need a zoning permit. Skip the permit and the county's process is to first reach out in writing, then post a Stop Work Order if you don't apply within their short window, and after that, citations or prosecution are possible.

Septic systems and private wells are handled by a separate multi-county agency, the Branch-Hillsdale-St. Joseph Community Health Agency (BHSJ). You need a permit from BHSJ before installing a well or septic system, and the county's own building permit paperwork specifically directs applicants to get that well/septic permit from BHSJ before construction can proceed. Composting toilets specifically aren't addressed in anything I found at the county level, so I'd ask BHSJ directly whether they'd approve one in place of a conventional septic system.

Greywater reuse and rainwater harvesting don't have Branch County-specific ordinances that I found. Both would default to the state plumbing/residential code, enforced locally by the county building department's inspectors, so rainwater collection is generally fine but indoor greywater plumbing likely needs code-compliant design.

On going fully off-grid, unhooked from public utilities, I didn't find an outright ban, but the county's own building permit checklist treats an approved well and septic permit as a standard prerequisite for occupancy. That suggests a fully self-contained water/waste setup would need to be reviewed and approved as an equivalent system, not just installed quietly. I'd confirm this directly with BHSJ and the Building Department before assuming a composting toilet or rain cistern alone will satisfy occupancy requirements.

Bottom line: county building and water/septic rules are consistent countywide, but zoning, and therefore what you can actually put on the land and live in, is entirely a township-by-township question here.