CahillStudio is an innovative building design firm in the San Francisco Bay Area specializing in custom residences and vineyard estate properties. Our work is site-specific, responsive to the environment, and driven by a thorough understanding of each client's goals and site characteristics. We are a client-focused, full-service firm to our clients, offering conceptual design and master planning through construction administration. 

A passion for modern interpretations of vernacular forms underlies our design philosophy. And a commitment to locally sourced natural materials and the highest level of craftsmanship further connect our projects to the land.