1 Best ADU Builders in Hilton Head, South Carolina

Verified ADU contractors and builders in Hilton Head, SC

Frequently Asked Questions — ADU Builders in Hilton Head

How much does it cost to hire an ADU builder in Hilton Head?

ADU construction costs in Hilton Head, South Carolina vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in Hilton Head to get accurate quotes for your specific project.

How long does it take to build an ADU in Hilton Head?

In Hilton Head, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on South Carolina local regulations. Prefab and modular ADUs often have faster timelines than site-built units.

Do I need a permit to build an ADU in Hilton Head?

Yes, a building permit is required for ADU construction in Hilton Head, South Carolina. Your ADU builder will typically handle the permit application as part of their service. South Carolina has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.

What types of ADUs can be built in Hilton Head?

Common ADU types in Hilton Head include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local Hilton Head ADU builder can advise on what's allowed on your specific parcel.