Off-Grid Living in Iron County, Michigan

I've spent a fair bit of time digging through Iron County, Michigan's public records, and the first thing worth knowing is that Iron County itself has no countywide zoning ordinance. That's unusual, and it matters a lot for anyone eyeing raw land here. Zoning is handled township by township (or by the two cities, Iron River and Iron Mountain), so whether you can put a cabin, tiny home, or off-grid dwelling on a given parcel depends entirely on which township that parcel sits in. Bates Township, Mansfield Township, Stambaugh Township, Iron River Township, and Mastodon Township each have their own separately adopted zoning ordinance under Michigan's state Zoning Enabling Act (PA 110 of 2006). Before you do anything else, I'd call the specific township hall for your parcel.

Where the county does step in uniformly is building permits and inspections. The Iron County Construction Code office issues permits and inspects building, electrical, plumbing, and mechanical work countywide. One useful detail I found: an accessory structure under 200 square feet with no electrical, plumbing, or mechanical hookups doesn't need a building permit, but anything larger does. Also, the county's process requires zoning approval from your township before a building permit will be issued, so it's a two-step chain: township first, county second. If you're building within 500 feet of a lake, river, or stream, you'll also need to show proof of a Soil and Sediment permit or exemption, and the county points people to the Iron-Baraga Conservation District for that.

Septic and well permitting isn't handled by the county at all. It runs through the Dickinson-Iron District Health Department, a shared health authority covering both counties. If you're building somewhere without municipal water and sewer and plan to install your own well and septic, their signature is required, even on a rebuild that reuses an existing well or septic system. Wells specifically need a permit from the health department's Environmental Health Division, and they do final inspections on every newly constructed well, including the state-required bacteria sample, even though Michigan doesn't mandate that inspection statewide.

Greywater and rainwater harvesting rules are genuinely murky here. I couldn't find any Iron County or Dickinson-Iron ordinance addressing either topic specifically, which means they likely default to Michigan's state plumbing code baseline administered by LARA. I'd confirm directly with the health department before setting up a greywater system.

On full off-grid disconnection: county documents mention that hauling water is allowed under certain circumstances, so it's not outright banned, but new construction still needs the health department's sign-off on a documented water and waste plan. There's no blanket ordinance against off-grid living, but you can't skip the paperwork.