3696 Alta Loma DriveJamul, CA 91935

About this home

Perched high on a 1.42-acre parcel in eastern San Diego County, "The Boulder House" is a world-renowned green architectural sanctuary crafted by the father-and-son design team of James and Drew Hubbell. Featured in The Los Angeles Times and multiple design publications, this 3-bedroom, 2-bathroom estate spans 3,460 sq. ft. of artistic craftsmanship integrated directly into its natural surroundings. The interior opens across ceramic tile floors beneath vaulted ceilings, framed by arched windows, custom tilework, and a central tower fan that optimizes natural climate control. At the home’s heart sits a 14-foot natural boulder that serves as a living room centerpiece—naturally humidifying and cooling in the summer while radiating heat through the winter. Super-insulated straw bale exterior walls keep the home comfortable year-round while exceeding California Title 24 energy standards by 41%. The single-level layout features a light-filled kitchen, a spacious primary suite, and flexible living spaces that open out to sweeping, unobstructed mountain and valley vistas. Outdoors, the secluded grounds border protected land and a wildlife sanctuary, featuring a re-plastered swimming pool, freshly recoated exterior limestone, mature landscape, and ample parking. Positioned just minutes from local schools, shopping, and downtown San Diego access.

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