Small temporary political signs are allowed on private property in unincorporated Charleston County without a permit. A zoning permit is required only for political signs larger than 32 square feet, which are then treated as permanent free-standing signs.
ZLDR Sec. 9.8 governs temporary signs, including political signs, on unincorporated county land. A zoning permit is required for temporary political signs greater than 32 square feet; signs over that size are treated as permanent free-standing signs under Sec. 9.8.2 and must meet county building-code wind-load standards. All signs must comply with Sec. 9.8.1.H (signs interfering with vehicular vision), must not interfere with any official traffic sign, signal or device or block drivers' views, and must not create other public-safety hazards. Signs in the public right-of-way are prohibited. Federal First Amendment law limits content-based restrictions, so the county regulates size, placement and duration rather than message. Cities set their own sign rules within their limits.
Political signs not in compliance are subject to enforcement under ZLDR Chapter 11 (Violations, Penalties, and Enforcement); non-conforming or right-of-way signs may be removed.
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