Start with the property jurisdiction
A Columbia mailing address is not always the same permitting authority. Check whether the property is inside City of Columbia, unincorporated Richland County, Lexington County, West Columbia, Cayce, Irmo, or another municipality before work starts.
Useful permit contacts
Richland County Building Permits: 803-576-2140. Lexington County Building Permits: 803-785-8130. City of Columbia Development Center: 803-545-3420. Confirm current process, portal, inspections, and owner-builder rules with the authority.
Common regulated work
Electrical, gas, mechanical, plumbing, structural, roofing, remodeling, and major replacement work may require permits or inspections. Lexington County explicitly lists regulated electrical, gas, mechanical, and plumbing installations or replacements among permit-triggering work.
Ordinary repairs and cosmetic work
Some routine repairs and cosmetic changes may be exempt, but exemptions vary. Lexington County examples include ordinary repairs and cosmetic work such as painting, carpeting, and cabinets. Verify before assuming a job is exempt.
Owner-builder work needs extra caution
Richland County publishes an owner-builder process that can require homeowner documentation, subcontractor names, license numbers, and use restrictions. Read the official form and ask the permit office before managing work yourself.
Quick checklist
- Confirm property jurisdiction
- Ask whether the job needs a permit
- Confirm who pulls the permit
- Ask about inspections
- Save permit and closeout documents