Off-Grid Living in Walton County, Florida

I've been digging into what off-grid living actually looks like in Walton County, Florida, and the short version is: it's doable, but you're threading a needle between county land-use rules and a state septic system that just changed hands.

Zoning and raw land. Walton County (unincorporated) runs its own Land Development Code through Planning & Development Services, and it's separate from whatever DeFuniak Springs, Freeport, or the South Walton municipalities do inside their own borders. If you're eyeing raw land, check which jurisdiction it actually sits in first. The county's code does something a lot of Florida counties don't: it has a formal Temporary RV Living Permit, allowing one RV as a residence on parcels of five acres or more in certain zoning districts, with conditions the Planning Director can set (setbacks, screening, buffers). There's also a carve-out for historically used fish camps and hunting camps, where the Director can waive the RV permit requirement. But this is all zoning-district dependent, so don't assume it applies to your specific parcel without checking with the county.

Dwellings and RVs. RV living here is treated as temporary, not as a substitute for a permanent home, and commercial RV use is barred in at least one district reviewed. You're on the hook for lawful grey and black water disposal even under the temporary permit. I found no separate tiny-home code, so a small permanent house likely just runs through standard single-family permitting.

Building permits. The Florida Building Code applies here (the 2023 edition for anything filed after the end of 2023), and Walton County's Planning & Development Services reviews projects for code and Comprehensive Plan compliance before the Building Division issues permits. There's a modest exemption for small owner-built non-habitable accessory structures, but verify the specifics with the Building Division rather than assuming your shed qualifies.

Septic. This is the twist: as of January 2025, septic permitting in Walton County was transferred from the county health department to the state DEP directly, one of 16 Florida counties handled this way. You'll apply through DEP's OSTDS online portal, not the local health office.

Greywater and rainwater. I didn't find any Walton-specific rules loosening the state's tight greywater restrictions (generally limited to toilet/urinal flushing), so the state baseline applies. Rainwater harvesting is similarly unaddressed at the county level, so it's unclear rather than confirmed permitted.

Wells. Well construction runs through the Northwest Florida Water Management District, not the county, and Walton falls inside a designated Water Resource Caution Area, which can mean added permitting conditions.

Full disconnection. No outright ban on going off-grid, but the county's own building checklists ask for septic/water availability documentation and an energy form referencing your power company, so full disconnection isn't clearly blessed either. Call the Building Division before you commit to a plan.