Fabulous custom end-of-cul-de-sac estate borders open space in gated Blackhawk C.C Original Owr. Captivating sunset vws from 4747+/-SF on 2 levels. 2 staircases. Gorgeous park-like setting sprawls over 2 parcels, .59+/-acres. 5 bds. 4.5 bths. 5th bdrm/office. 400+ bottle wine cellar. Impressive scale of design in every room. 1000 +/-SF formal living rm w/frpl. Sizeable dining rm. Huge chef’s kitchen updated w/granite counters, stainless Dacor, KitchenAid appls incld dual ovens, warming drawer, new refrigerator, 2 Franke stainless sinks. Casual dining rm w/view windws. Adjacent family rm w/walk-around wet bar, frpl w/Idaho quartz surround. Hardwd, carpet, exposed vaulted beam ceilings, automated blinds, Low E Milgard windows. Grand primary suite, frpl, walk-in closet, en suite updated w/heated porcelain tile flr, jetted tub maintains temp, large shwr, heated towel rack, dual sinks, quartz counter. Spectacular indr/outdr living. Trek deck, mature trees & gardens, lawn, gas frpit. Rm for pool, spa, cabana, outdr kitchen, 3- car garage, upgraded drs, 2019 ext paint, dual, 3-zoned HV. Central AC. Updated ductwork. Security alarm, motion lights. Near walking trail to Mt. Diablo, 2 golf courses, tennis cts, fitness ctr, top-rated SRVUSD schls, freeways, Livermore Valley Wine Country.