Douglas Manful - Agt: 925-383-8158 - 60 secluded acres surrounded by stunning panoramic views! Private gated mountaintop estate overlooking Mt. Diablo & Roundhill Country Club. 22ft ceilings, elevator going to 3 flrs, infinity edge pool, 5 car garage & barn. 20 mins east of SF & 10 mins to Buchanan private airport in Concord.