Off-Grid Living in Washington County, Florida

I've been digging through Washington County, Florida's official pages and a few state sources to piece together what off-grid living actually looks like here, and the short version is: this is not a "no rules" rural county. Washington County has countywide zoning through its Land Development Code (LDC) and Comprehensive Plan, administered by the Washington County Planning Department, and that LDC applies not just in unincorporated areas but in the towns of Caryville, Ebro, Vernon, and Wausau under an interlocal agreement. So if you're picturing buying a remote parcel and building whatever you want, know that a Land Use Application approved by the Planning Department has to happen before the county will even issue you a building permit.

On dwellings, tiny homes, and RVs, I couldn't confirm specific county language on minimum square footage or RV-as-permanent-dwelling rules in what's publicly retrievable. The LDC is hosted on Municode and likely addresses this somewhere, but I'd call the Planning Department directly to ask before you commit to a small or unconventional structure. Florida's statewide RV size rules under Chapter 320 would apply as a baseline regardless.

Building permits themselves go through the Washington County Building Department, which issues permits, does plan review, and handles inspections, as required under Florida's statewide building code framework. Before you get to that step you need the approved Land Use Application, a valid E-911 address, and possibly a driveway permit. If you're in a flood zone, expect a licensed surveyor or engineer to complete an elevation certificate.

Here's a genuinely important recent change: as of January 2, 2025, septic (onsite sewage) permitting in Washington County moved from the county health department to the Florida Department of Environmental Protection, as part of a state-level shift affecting sixteen Northwest Florida counties. So don't call the county health department expecting to get your septic permit anymore, DEP's Northwest District office now handles it.

Greywater and rainwater harvesting don't have county-specific ordinances that I could find, so both fall back on the general Florida Building Code baseline, meaning greywater reuse is narrowly limited and rainwater catchment for non-potable use is generally tolerated but not spelled out locally. Wells are handled by the Northwest Florida Water Management District, which issues well construction permits and, for larger draws, consumptive/water-use permits.

As for going fully off the grid and disconnecting from utilities: I didn't find an outright county ban on it, but practically speaking, you can't skip the approved sewage disposal system, land use approval, and building permit and still get a legal certificate of occupancy. So "off-grid" here means no forced electric or water hookup, not no oversight at all.

Bottom line: treat Washington County as a place with real, enforced land-use and building rules layered under state law, and call the Planning Department and Building Department early before you buy or build.