Tonic Design Studio creates refined residential interiors for new homes and large-scale renovations, collaborating closely with architects, builders, and discerning homeowners from concept through completion.

Our work balances architectural clarity with warmth and livability, resulting in spaces that feel intentional, timeless, and deeply considered.

Founder Willem Stear brings over twenty years of international design experience shaped by projects across the United States, Europe, and South Africa. His work is known for its quiet sophistication, intuitive detailing, and ability to create homes that feel both elevated and personal.

Based in Atlanta, Tonic Design Studio offers a carefully curated selection of services designed to provide clarity, collaboration, and a thoughtful design experience from beginning to end.