Cass Calder Smith Architecture + Interiors is an award-winning multidisciplinary firm dedicated to design excellence. Founded in 1992 by architect Cass Calder Smith, the firm is led today by principals Cass Smith, Taylor Lawson, and Tim Quayle. With studios in San Francisco and New York, we work throughout the United States and internationally.
We believe masterful design is unique, relevant, and timeless. Our work balances boldness with simplicity, innovation with functionality, and artistic ambition with precision. Across architecture and interiors, we create enduring places distinguished by natural light, authentic materials, thoughtful proportions, and a strong connection to their setting.
Our portfolio spans distinctive residences, restaurants, hotels, and other unique environments. Residential projects, from the Hamptons and New York City to California and beyond, are conceived as personal, artful homes tailored to each client’s lifestyle and aspirations. Our hospitality projects are memorable experiences rooted in place, balancing modern luxury with practicality.
At the heart of our practice is a collaborative process built on listening, creativity, attention to detail, and professionalism. The result is architecture and interiors that are highly considered, authentic, and enduring.
