Services | ADU & Additions
ADU & Additions Services in Charleston, SC.
Our Core ADU & Additions Services
- Custom ADU Design & Permitting
We provide full architectural plans, site evaluations, and handle permit applications—streamlined to meet Charleston-area regulations.
- New ADU Construction
Ground-up construction of durable, energy-efficient ADUs with modern finishes designed to last.
- Garage & Exterior Conversions
Transform existing garages or outbuildings into stylish, functional living spaces, expanding your property’s potential.
- Second-Story & Bump-Out Additions
Expand your home’s footprint upward or outward to add extra bedrooms, home offices, or rental units.
- Interior Remodeling & Finish Work
From drywall and flooring to cabinetry and trim, we handle all aspects of interior finish work to seamlessly integrate new spaces into your home.
- Permit Expediting & Inspections
We manage all communication with local building departments, schedule inspections, and ensure full code compliance.
Why Choose OTT Construction?
- Woman-Owned & Operator-Led
Benefit from the unique perspective and precision that comes from a woman’s leadership and attention to detail.
- Hands-On Project Management
Your dedicated project manager oversees every subcontractor and delivery, ensuring you stay informed at each milestone.
- Transparent Timelines & Budgets
We provide a clear, itemized schedule and cost estimate upfront—no hidden fees, no surprise delays.
- Licensed & Insured Tradespeople
All framing, electrical, plumbing, and finish work is carried out by certified professionals who are well-versed in Charleston-area building codes.
- Local Expertise
Proudly serving Charleston, James Island, Mount Pleasant, Sullivan’s Island, Daniel Island, Isle of Palms, Kiawah Island, North Charleston, Seabrook Island, Ladson, Johns Island, Goose Creek, West Ashley, and Summerville, we understand local regulations and design trends.
Serving the Entire Charleston Area
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From Charleston to James Island, Mount Pleasant, Sullivan’s Island, and beyond, OTT Construction is your trusted partner for ADUs and home additions. We understand local permitting processes, design trends, and the unique character of each neighborhood, ensuring your new space adds lasting value.
Ready to Add Functional Living Space to Your Property?
Contact us today for a free consultation and discover why homeowners across the Charleston area choose OTT Construction for their ADU and addition needs. Let us help you maximize your property’s potential. Call (843) 937-3659 or fill out our online form now!