
Local adu in South Carolina
Last updated: September 24, 2026
Accessory Dwelling Units in South Carolina. We serve Charleston. Add living space to your property.
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South Carolina offers a long building season. Mild winters allow for year-round work. Hot, humid summers require planning for comfort and material protection. We adapt our schedules to the weather. This ensures efficiency.
Common questions
What is the cheapest way to build an ADU?
What does ADU stand for?
ADU means Accessory Dwelling Unit. It's a separate living space on your land. ADUs can be basement apartments or backyard cottages. They provide extra housing options.
Are ADUs allowed in South Carolina?
Yes, ADUs are becoming more common in South Carolina. Many cities are adopting ADU-friendly ordinances. We help you navigate the local rules. Charleston has specific guidelines to follow.
What is the most expensive part of building an ADU?
Foundation and site work are often high-cost items. Bringing in utilities like water and sewer can be expensive. Custom designs and premium finishes also increase the price. We provide detailed quotes.
How much does it cost to build a 1200 sq ft ADU in South Carolina?
What are local ADU rules in Charleston?
Charleston has specific regulations for ADUs. These cover lot size, placement, and density. We ensure your ADU design meets Charleston's requirements. Let us help you build legally.
Useful reference: HUD ADU resources — ADU policy and financing research.