A rare opportunity to build your dream home or develop the last lot in the exclusive, gated Diablo Ranch Estates. Neighboring Diablo County Club, the prestigious Athenian preparatory & boarding school, and en route to Mt. Diablo State Park, this property offers an idyllic setting for active & meditative living- surrounded by mountain views, oaks and greenbelts. Modern transitional-farmhouse design by Diablo favorite, Talon Design Group. New architectural design for over 4,100 sq.ft. of open-plan living, including: 5 bedrooms, 4.5 bathrooms, large retractable glass doors that open outdoor loggias, and a large ADU with its own private driveway and entrance – ideal for additional rental income, as a pool house, au-pair or in-law residence. Don’t miss this exceptional chance to own and express your personal tastes in this special enclave of Mt. Diablo.