What matters for project planning
Neither record governs remediation, but the flood file is genuinely diagnostic here. It tells you whether the property has taken water before, which changes what an assessment should look for -- contamination inside wall cavities from an earlier storm rather than only what is visible now -- and in a town this exposed that history is common enough to be worth checking rather than assuming. The wetlands and coastal-exposure guidance matters at one remove: where correcting a moisture source means regrading near a marsh edge, that work is regulated even though the cleaning is not.
Official sources
Verify the property, not just the city
Citywide context cannot establish a parcel’s flood zone, historic designation, stream buffer, permit requirements, soil conditions, or concealed construction. Verify each of these specifics directly with the Town of Mount Pleasant and your chosen provider before any work starts.
Sources reviewed June 20, 2026. External requirements and maps can change.