Founded by award-winning British designer Mark Howorth in 1997, Callender Howorth has grown into one of the world’s leading luxury interior design studios. Over 25 years of experience, the firm brings a raised international perspective to high-end residential projects across New York, Los Angeles, London, Paris and the French Riviera. The studio’s ability to create refined interiors that are both sophisticated and deeply personal is what makes it so special, combining strong visual identity with architectural expertise. Callender Howorth’s signature style is transforming a home into a timeless environment while balancing comfort, elegance and functionality. Each project mirrors dedication to craftsmanship and a subtle understanding of how people live, producing spaces that feel tailored, effortless and creatively composed. With a fixed focus on luxury lifestyle design, the studio continues to set the bar for modern interiors around the world.
