Solar permit cost in South Carolina

On a typical $22,000 solar project in South Carolina, the statewide median permit fee runs $266 — about 1.21% of project cost. Major metros run higher: Charleston $333, Greenville $306, Columbia $280. Charleston + Greenville mid-tier; coastal counties add storm-zone inspection fees.

Each South Carolina city/county sets its own multiplier on top of the state base rate. Charleston runs 1.25× because of stricter plan review + structural review + energy-code overhead. Columbia sits lower (1.05×) because of less plan-review depth + simpler intake. Rural counties in South Carolina often have flat-fee schedules below even the lowest metro.

The permit fee covers the building department's intake + base review. NOT included: plan-review service fees (often a separate line, 0.5–1% of project cost), per-trade fees for plumbing/electrical/mechanical (typically $50–$200 each), and any state-level surcharges (FL adds DBPR 1.5%, NJ adds DCA, OR adds 12% BCD surcharge). Your contractor's filing fee is also separate. Budget 1.5–2× the base permit fee for the all-in cost.

Don't. Working without a required permit fails any future resale inspection (the buyer's inspector WILL flag it), voids your homeowner's insurance for any related claim, and triggers retro-permitting fines that are typically 2–3× the original fee. South Carolina treats unpermitted solar work as a separate violation under state building code. The "savings" become a $1,500 problem at resale on a $500 fee.