Rarely available, extremely private 1-story home in Costello Acres. This approx. 6000 sf estate features a 5 bd/5.5 ba residence w/attached, 2 br/ 2 ba second home on a flat Â¾ acre lot. The main residence features soaring ceilings, skylights & hardwood floors. The living room features an elegant stone fireplace. The kitchen has granite, custom cabinetry, skylights, & a dining island plus dining area. The master suite offers sliders to the patio, a walk-in closet & his/hers vanities. The main house also has a home office w/private entrance. The second residence w/separate address & parking at 878 Campbell Ave, has a large kitchen, a master w/walk-in closet, a guest br, office, two baths & laundry, ideal for family or Au Pair. The lot is a park-like oasis ideal for gardening, play areas, a vineyard or a pool. Walk to Covington and Pinewood w/access to Blach Jr. High & Los Altos High. Close to the Village of Los Altos. Access to Foothill, 280, 85, Google, Apple. Bitcoin accepted.