ADU Locator

1 Best ADU Builders in Johns Island, South Carolina

Verified ADU contractors and builders in Johns Island, SC

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Generation V Homes

At Generation V Homes, we make the ADU process simple. Our modular builds are crafted in a controlled environment, delivered to your property, and installed quickly — giving you a secure, durable, and high-quality unit designed for coastal South Carolina.

(843) 990-3136
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Frequently Asked Questions — ADU Builders in Johns Island

How much does it cost to hire an ADU builder in Johns Island?

ADU construction costs in Johns Island, 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 Johns Island to get accurate quotes for your specific project.

How long does it take to build an ADU in Johns Island?

In Johns Island, 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 Johns Island?

Yes, a building permit is required for ADU construction in Johns Island, 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 Johns Island?

Common ADU types in Johns Island 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 Johns Island ADU builder can advise on what's allowed on your specific parcel.