Backyard House in Foster City

This 750 sq ft detached ADU in Foster City, California was designed as a comfortable backyard home for the homeowners’ children while they attend college. The goal of the project was to create a private and functional living space that keeps the family close while providing independence.

The two-bedroom, two-bathroom layout maximizes the available square footage, offering a practical floor plan with a bright living area, a fully equipped kitchen, and well-separated bedrooms for privacy. A detached structure allows the unit to function as a true secondary home, giving its residents a quiet and comfortable environment for studying and everyday living.

Large windows bring in natural light and create an open, welcoming atmosphere, while the efficient design ensures that every square foot is used effectively. With thoughtful planning and modern finishes, this Backyard House ADU blends seamlessly with the main property and surrounding neighborhood.

Projects like this demonstrate how a detached ADU can provide flexible housing for families, whether for college-age children, guests, or future rental opportunities. Backyard homes are increasingly popular because they expand living space while maintaining the privacy and independence of a separate residence.