Off-grid site report

Jasper County, SC

32.2757, -81.0800 · 33 ft elevation

Read this before you act on anything below. This is my researched starting point for Jasper County, SC, not legal advice and not a guarantee. Rules change, and the deciding facts on any specific parcel (setbacks, perc results, overlay districts, deed restrictions, road frontage) live at the county or town office, not in any database. Before you buy land or build, confirm the current rules directly with the local zoning and health offices - the sources on this page tell you exactly who to call.

The local rulesJasper County, SC

Zoning & raw-land occupancy

Varies locallyJasper County has an adopted Zoning Ordinance and Land Development Regulations administered by the Planning and Building Department for unincorporated areas; some uses require rezoning above certain acreage, and the county has active growth-area moratoriums. Confirm your parcel's district with the county. source

Dwellings, tiny homes & RVs

RestrictedManufactured homes must be registered with the County Assessor and permitted before occupancy or utility hookup, per SC state law enforced locally. Long-term RV residency isn't clearly addressed; not confirmed. source

Building permits & codes

Generally allowedThe county Building Department enforces the IBC and requires permits for nearly all construction, with only small accessory structures and short fences exempt; an owner-builder exemption exists for personal-use homes with a recorded disclosure statement. source

Septic & composting toilets

RestrictedSeptic systems are permitted by the state agency SCDES (formerly DHEC), and the county requires proof of that approval before issuing a certificate of occupancy. Composting toilets as an alternative aren't addressed locally. source

Greywater reuse

RestrictedNo county-specific greywater ordinance was found; this falls back to the state baseline requiring an engineered system designed by a licensed SC engineer.

Rainwater harvesting

Unclear - verifyNo Jasper County ordinance or stated policy on rainwater harvesting was found; ask the Planning and Building Department directly before installing a system tied to a dwelling.

Private wells & water rights

RestrictedNo county-specific well ordinance was found; state SCDES well standards apply, and much of the county is also served by the public Beaufort-Jasper Water and Sewer Authority.

Living disconnected from utilities

RestrictedCounty ordinance explicitly bars utilities and electric cooperatives from connecting power to any structure requiring a permit until that permit is obtained, and occupancy also requires proof of water/septic approval, making fully off-grid unpermitted living likely to face enforcement. source

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 5.3 hrs/day
Worst month (sizes an off-grid array): 4.2 hrs/day
Yearly output per 1 kW of panels: 1,422 kWh

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Weather1991-2020

Precipitation: 48 in/yr
Snowfall: 0 in/yr
Heating degree days: 1,811 (mild)
Frost-free season: Mar 6 to Nov 28

How far help isstraight-line

Hospital Coastal Carolina Medical Center: 3.1 mi
Fire station Jasper County Fire / Rescue Station 2 Hardeeville: 0.6 mi
Hardware store Harbor Freight Tools: 8.7 mi
Grocery Walmart Supercenter: 6.4 mi

From OpenStreetMap. Road miles will be longer, often much longer in hill country.

Plan this spot

These open with this location's real numbers already filled in (ZIP 29927).

Size a solar system Heat loss & insulation Firewood per winter Rainwater harvest Garden size Panel tilt

Sources: US Census Bureau geocoder; NLR PVWatts v8 (solar); NOAA NCEI 1991-2020 climate normals (nearest station) or Open-Meteo (ZIP-centroid) for weather; Open-Elevation; OpenStreetMap contributors. Public data retrieved Aug 22, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.