Rare opportunity to build a stunning custom residence on a 22,400 square foot flag lot in South Los Altos. Tucked away from the street and surrounded by mature trees, this private flag lot offers a serene, park-like setting with exceptional privacy. The property comes with approved plans for an impressive residence featuring approximately 4 bedrooms plus a dedicated office, expansive open-concept living spaces. The thoughtfully designed floor plan centers around a spacious great room, chefs kitchen, luxurious primary suite, and multiple bedroom wings that provide flexibility for families, guests, and work-from-home needs.The approved design also includes generous entertaining areas, a resort-inspired pool courtyard, an attached 2 car garage. In addition, the expansive lot offers potential space for a future ADU, with conceptual design studies available for consideration. The flag-lot configuration creates a uniquely private setting rarely found in Los Altos while maintaining convenient access to Oak Ave Elementary, Georgina P. Blach Jr High School, Mountain View High School. Buyer to verify availability.