Off-Grid Living in Broadwater County, Montana

If you're eyeing raw land in Broadwater County, Montana for an off-grid setup, here's what I found digging through county and state sources. This is a rural, low-population county without a comprehensive countywide zoning ordinance, which sounds like freedom, but there are still real checkpoints, mainly around subdivisions, septic, and building code.

Zoning: Outside the Townsend town limits, Broadwater County doesn't appear to have a blanket zoning ordinance covering most unincorporated land. That said, if the parcel you want came from a subdivision, or if you plan to subdivide, Montana state subdivision law and the county's Community Development & Planning Office get involved. Townsend itself has its own separate zoning authority, so double-check which jurisdiction your parcel falls in.

Dwellings, tiny homes, RVs: I didn't find a county-specific ordinance here. It looks like Broadwater inherits Montana's state baseline, meaning foundation-built tiny homes generally get handled under IRC Appendix Q, while tiny homes on wheels get treated like RVs. Confirm specifics with the county Planning office before you commit to a build style.

Building permits: This one's genuinely murky. The state's Building Codes Bureau lists Broadwater County in its permit-jurisdiction directory, but I couldn't confirm whether the county has opted into full state building-code jurisdiction or falls under Montana's single-family-home exemption. Worth a direct call before you assume either way.

Septic: This is the one area where Broadwater County has clear, written local authority. County Environmental Health requires a permit before construction, and their guidance sheet lays out specific setback distances (well, surface water, property lines). Composting toilets aren't separately addressed in what I found, so ask the sanitarian directly if that's your plan.

Greywater and rainwater: No county-specific rules turned up for either. Both likely default to Montana's state baseline, greywater reuse restricted, rainwater harvesting permitted, but confirm with county Environmental Health since local application isn't spelled out.

Wells: Wells fall under the state's exempt-well framework, with drilling licensed through the Montana Board of Water Well Contractors and water rights through DNRC. The county's subdivision regulations do require water and sanitation info at plat review, which matters if you're carving off a new parcel.

Off-grid utility disconnection: No outright rule against going fully off-grid that I found, but subdivision approval and septic/well sign-off effectively function as backdoor requirements even for parcels with no utility hookups planned.

Bottom line: Broadwater's light-touch zoning makes it appealing, but septic permitting and subdivision review are the real gatekeepers here. Call before you buy or build.