Building Permits in Mount Pleasant, SC
Check permit requirements for home improvement projects in Mount Pleasant. Select a project type below to see local requirements, estimated fees, and how to apply.
Key Exemptions in Mount Pleasant
These projects typically don't require a building permit in Mount Pleasant:
Small at-grade patio slabs under 120 square feet are typically exempt from building permits per IRC R105.2 (extended via local amendment). The slab must be at-grade (not more than 30 inches above adjacent grade) and not part of an accessible route.
Freestanding decks not more than 30 inches above grade are exempt from a building permit per IRC R105.2.
Replacing an existing driveway in the same footprint with no changes to the curb cut is generally exempt from permit requirements.
Replacing a light fixture or outlet in an existing location does not require a permit.
Plugging a Level 1 (120V) EV charger into an existing outlet is NOT considered new electrical work and does not require a permit. This is the only permit-free EV charging method, just plug in and charge. Adds approximately 4-5 miles of range per hour.
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Mount Pleasant Building Department
Nearby Cities in South Carolina
Permit Guides
Read our in-depth guides for common home improvement projects: