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Interior Designers & Decorators
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About Us

Onyx Design Collaborative, directed by Emily Cox and Michelle Suddeth, is a full-service luxury Interior Design Firm located in Charleston, South Carolina. With roots in high-end residential Interior Design and furnishings, we also specialize in Architectural Detailing, Interior Architecture and Construction Administration. We offer a multi-faceted experience because we understand that each of our client's needs are unique. We want our involvement in each project to begin as early as possible so that we can support a thoughtful and cohesive design, while making the process feel both simple and seamless. Helping clients create truly unique and beautiful homes is our passion and priority. We are honored to have clients who entrust us with the most personal of jobs, designing custom homes exquisitely tailored to their lives. We pride ourselves in uniting high-end design with top-notch client relationships, because it’s not just about building a home, it’s also about the experience along the way. This is achieved through personalized collaboration with our clients to ensure that their visions come to life. Our designs focus on bringing in classic and timeless elements, while mixing in fresh and functional modern touches. We think a home should feel both curated and collected by layering in old and new pieces, textures and patterns, sophisticated colors, materials, and playful details expressing our clients’ lives and personalities. Homes should reflect the families that live, work and play within.

Services Provided

Art Selection, Bathroom Design, Bedroom Design, Color Consulting, Custom Furniture, Custom Kitchen Cabinets, Custom Rugs, Dining Room Design, Floor Plans, Furniture Selection, Home Staging, Interior Design, Kitchen Design, Lighting Design, Living Room Design, Project Management, Space Planning, Kitchen Remodeling

Areas Served

Charleston, Daniel Island, Johns Island, Mount Pleasant, North Charleston, Sullivans Island, Folly Beach, Isle of Palms, Kiawah Island


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12 Projects

Bathroom - large transitional master dark wood floor bathroom idea in Charleston with shaker cabinets, white cabinets, white walls, marble countertops, a hinged shower door and white countertops

Kiawah Island Club Drive

Kiawah Island, SC
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Business Details

Business Name


Phone Number

(865) 898-4357


1640 Meeting Street Road
Suite 205
Charleston, SC 29405

Typical Job Cost

$1.8 million - 9 million

Our typical new construction projects range in total cost between 1.75 million and 9 million dollars. Renovation projects typically begin at $450/sq ft, with total cost being contingent on scope of project. Our design fees are $175/hr. and our minimum design fee for a project is $12,500.


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