Quintessential Mid-Century Modern home by famed architect Robert Klemmedson! Step back in time when you enter this rare and private 5 bedroom, 3 bath masterpiece built in 1959 in Lafayette’s Upper Happy Valley. Original features are restored to their modernist glory, while designer updates are seamlessly blended in. Featuring: soaring vaulted ceilings, walls of windows framing Mt. Diablo views, slate floors w/ radiant heat, lightly-hued mahogany paneling, 2-sided copper fireplace and conversation pit, striking limestone living room wall, updated baths & sliding glass doors to decks, patio & pool. Wide-open kitchen boasts chef’s appliances, stone counters, custom cabinets, peninsula w/ seating, copper bar sink, wine fridge & kitchen-to-patio pass-through w/ folding glass windows. Primary en-suite bedroom is cantilevered dramatically over the living room & includes dressing room, bathroom w/ oversized sunken step-in shower, vast windows & deck w/ views. Other bedrooms occupy a devoted wing also w/ a den, game room and private patio to yards. Don’t miss the amazing and large yard, newly refinished pool & 2nd driveway for potential ADU or studio.