Charleston ADU Permit Fees & Cost Calculator
Charleston appears to allow ADUs, but the official city ADU page in the provided results does not expose a clear fee schedule. The best-supported fee finding is that Charleston likely uses standard building permit and plan review processes, while impact and school fees were not clearly documented in the search results.
Free ADU fee calculator
Estimate local ADU fees
Step 1 of 5: Location
The calculator uses staged city data from the ADUFee database with visible confidence levels and dated source tracking.
Fee overview
No official city fee schedule was present in the provided search results, so exact fee amounts should not be treated as confirmed.
The most detailed fee numbers in the search results come from an unofficial guide, which may be outdated or incomplete.
Utility connection charges, if any, were not clearly documented in the provided results and may vary by utility provider and project scope.
The relevant jurisdiction is the City of Charleston, South Carolina, not Charleston County or North Charleston.
Any ADU fees not explicitly shown in official city documents should be treated as unverified.
Historic-district and flood-zone costs may apply only to certain parcels, not all ADU projects.
FAQs
Are Charleston ADU fee estimates official?
No. ADUFee.com provides planning estimates only. Final fees are set by the city, utility providers, school district, and other agencies.
What sources are used for Charleston?
The database stores city, state, utility, school, county, and other source links where available. Each estimate should still be verified locally.
Can ADU fees vary within South Carolina?
Yes. Permit, utility, school, inspection, and impact fees can vary by jurisdiction, parcel, project size, utility provider, and local interpretation.