What matters for project planning
Columbia provides historic-preservation guidance and a municipal stormwater program. Local designation, flood and drainage conditions, easements, and permits should be verified before exterior, structural, or site work begins.
Official sources
Verify the property, not just the city
None of the general Richland or Lexington County information above tells you what applies to your specific parcel. Confirm flood status, historic designation, drainage easements, and existing conditions with the city and your selected provider before work is scoped.
Research date
Sources reviewed June 20, 2026. External requirements and maps can change.