Building Permits in West Columbia, SC

SC, a small accessory concrete slab (walkway, patio pad, small equipment pad) of 200 square feet or less at grade is exempt from a building permit. Larger slabs that will support a future structure or are part of a building foundation fall under the building permit. Impervious surface counts toward zoning lot-coverage limits.

SC, a freestanding deck not more than 30 inches above grade and not more than 200 square feet is exempt from a building permit under 2021 IRC R105.2. City of West Columbia zoning setbacks still apply (verify with Building Department at (803) 936-6286). Parcels in the Congaree River floodplain (FEMA Zone AE) may face additional floodplain elevation requirements.

SC, fences 7 feet or less are exempt from a state building permit under 2021 IRC R105.2. City zoning regulates fence height, material, and setback; HOA covenants in many subdivisions further restrict materials and color. Verify city zoning rules with the Building Department at (803) 936-6286.

SC, an at-grade uncovered concrete or paver patio is exempt from a building permit. Adding a cover, roof, or screen enclosure turns the covered area into an accessory structure requiring a building permit. Impervious surface coverage counts toward zoning lot-coverage limits.

SC, a retaining wall 4 feet or less measured from bottom of footing to top of wall, without surcharge, is exempt from a building permit under 2021 IRC R105.2. Drainage and erosion control remain the owner's responsibility. Walls in the Congaree River floodplain or that disturb significant ground area may trigger SCDHEC stormwater review.