Set on over 1/2 an acre in Tiburon's coveted Hillhaven neighborhood, this perfectly sited residence has been in the same family for 58 years. Designed by renowned architect Art Gensler, highlighting dramatic living spaces and sweeping views spanning the Golden Gate Bridge, San Francisco, the Bay, Sausalito, and Mount Tamalpais. The beautiful grounds feature expansive entertainment decks, a pool, multiple gathering spaces, a lush level lawn, and inviting gardens. The dramatic, oversized living room showcases soaring vaulted ceilings, new hardwood floors, a fireplace, sliding doors opening to the deck, and large windows framing breathtaking views. The spacious kitchen features new quartz countertops, a center island, a peninsula with counter seating, and stainless steel appliances; adjacent family room with vaulted ceilings, an office, and access to the outdoors. The main level includes 3 bedrooms, 2 full baths, and a 1/2 bath. Upstairs features the primary suite, your own private retreat, with captivating views across the bay, new carpeting, a connecting office with built-ins, and a light and bright primary bath. Attached 1-bed, 1-bath guest unit with private entrance includes a kitchen, living room, and dining. Detached two-car garage, attached one-car garage, and a motor court.