Off-Grid Living in Clay County, Minnesota

I've been digging into what off-grid living actually looks like in Clay County, Minnesota, and the short version is: it depends heavily on whether your land sits inside one of the county's 11 incorporated cities or out in the unincorporated area. Here's what I found.

Zoning: Clay County's Planning and Zoning Department runs zoning for unincorporated land through its Land Development Ordinance, which sets up districts including Shoreland zones near lakes, rivers, and streams. If your parcel is inside one of the 11 cities, that city handles zoning instead, not the county. Before buying or building, I'd check the parcel on the county's online zoning map or call Planning and Zoning directly.

Dwellings: The county ordinance is clear that manufactured home parks aren't allowed, but a manufactured home used as a single-family residence is fine in any district that allows single-family homes, as long as it's anchored, skirted, and foundationed per state rules (Minnesota Rules Chapter 1350). I did not find county language specifically addressing tiny homes or RVs used as permanent dwellings, so that's genuinely unclear, confirm directly with Planning and Zoning before you commit to either option.

Building permits: The county requires a building permit for any building or addition built outside city limits, issued by Planning and Zoning. Inside a city, you'd go through that city's building office instead. There's also a separate Land Alteration Permit if you're moving a meaningful amount of earth, more restrictive near steep slopes or shoreland.

Septic: Minnesota state law requires counties to run septic (SSTS) programs meeting state minimums, and Clay County's own SSTS Ordinance implements the state's Chapter 7080 standards locally. Notably, the county does allow a homeowner to install or repair a standard septic system on their own property, though mounds and alternative systems are excluded. If your property is in a Shoreland zone or you're adding a bedroom, your septic system needs inspection and certification through the county's Environmental Health Department. Composting toilets are addressed at the state level only; I didn't find county-specific rules.

Greywater and rainwater: I found no standalone county ordinance for either. Greywater likely falls under the same SSTS framework, so ask Environmental Health. Rainwater harvesting isn't addressed in county sources I reviewed; outdoor barrel collection is typically unregulated under Minnesota's baseline, but confirm for anything plumbed indoors.

Wells: Well construction itself is governed by the state, through the Minnesota Department of Health's Well Code, not the county. The county does enforce a 3-foot minimum separation between a building's farthest projection and a well, and it runs an Abandoned Well Sealing Program through the Soil and Water Conservation District for wells that need to be properly sealed.

Utilities: I found nothing in county sources requiring or prohibiting grid disconnection for a habitable home outside city limits. That's a genuine open question, worth a direct call to Planning and Zoning before you plan a fully off-grid electrical setup.

Bottom line: Clay County gives you a workable path for off-grid living outside its cities, especially for manufactured homes and self-installed standard septic systems, but tiny homes, RVs-as-dwellings, greywater, and utility disconnection all need direct confirmation from the county before you build.