The original life estate condition for the de Guigne family HAS BEEN REMOVED on this property. Rare and unique opportunity to buy one of the largest parcels of land on the San Francisco Peninsula with 47.4 acres midway between Silicon Valley and San Francisco, just eight miles to SFO airport and private jet center. Over 100 year old mansion with Bay views, pool, hiking trails, canyons and reservoir. Ballroom, banquet dining, professional kitchen. Detached three-car garage, eight-car carport, and tremendous motor court parking. Truly a landmark property with potential to subdivide.