These parcels offer a rare opportunity to build one or two private, world-class estates on the desirable Tiburon peninsula. Both parcels provide sensational views of the San Francisco Bay and the ultimate southern Marin lifestyle, with easy access to nature, town, schools, and San Francisco. 138 Rock Hill Drive is the southern parcel, oriented towards San Francisco, with views of the San Francisco skyline, the Golden Gate Bridge, Richardson Bay, and Mt. Tamalpais. This parcel is 48,166 square feet (1.11 acres) and zoned to build a 6,800 square foot home with a 600 square foot garage. 142 Rock Hill Drive is oriented towards the north and west, with views spanning from the Golden Gate Bridge to Sausalito, Richardson Bay, and Mt. Tamalpais. This lot is 62,996 square feet (1.45 acres) and zoned to allow an 8,000 square foot home with a 750 square foot garage. Privacy abounds, with a large swath of protected open space immediately adjacent and above.