Off-Grid Living in Florence County, South Carolina

I've been digging through Florence County, South Carolina's official pages to figure out what off-grid living actually looks like here, and the honest answer is: it's a mix of solid county rules and real gaps I couldn't confirm. Here's what I found.

Zoning. Unlike some rural South Carolina counties that have no zoning at all, Florence County (in the unincorporated areas) is governed by a countywide zoning ordinance and land development ordinance, both administered by the Florence County Planning Department. That means raw-land occupancy isn't a free-for-all; what you can do depends on your specific parcel's zoning district. I didn't find district-by-district detail on off-grid use in the sources I reviewed, so I'd call Planning before assuming anything. Also key: if your land is inside the City of Florence, Lake City, or another municipality, that town's own zoning and building code takes over instead of the county's.

Dwellings, tiny homes, and RVs. This is one of the bigger unknowns. I could not find Florence-County-specific language on whether an RV or a tiny home on wheels can be used as a permanent residence. Some neighboring counties explicitly ban that; Florence County's policy on this point wasn't confirmed in what I reviewed, so treat it as an open question for Planning/Inspections.

Building permits. This part is clear and mandatory. The county's Inspections division requires zoning compliance, proof that water and sewer arrangements are paid or resolved, contractor licensing verification, and a full building permit application with plan review before construction starts. The county enforces state-adopted international building and residential codes.

Septic and composting toilets. Any home not tied to public or community sewer needs a septic permit first, issued by the South Carolina Department of Environmental Services (SCDES, the DHEC successor). No septic permit, no county building permit. I found nothing suggesting Florence County allows composting toilets as a standalone substitute, so that's not confirmed either way.

Greywater and rainwater. I found no Florence County ordinance addressing either topic specifically. This falls back to the state baseline, which itself is thin: greywater reuse generally needs an engineered system, and rainwater harvesting rules are simply unclear statewide. Don't guess here, ask before you build a cistern or greywater system.

Wells. Private wells are regulated by SCDES under the statewide well standards regulation, requiring a licensed SC well driller and a permit before drilling. The county folds this into its own permit checklist by requiring proof of water arrangements.

Utilities. I found no explicit rule forcing you onto the electrical grid, so solar-powered living looks feasible if your structure otherwise meets code. But because septic/well permits are required before the county issues a building permit, going fully unplumbed (hauled water, no fixed sewage system) is a real open question I couldn't resolve from official sources.

Bottom line: Florence County has real zoning and permitting authority, unlike some SC counties with no zoning, and several off-grid specifics (RVs as dwellings, greywater, rainwater, disconnected utilities) just aren't spelled out publicly. Call Planning before you buy or build.