Why settle for ordinary when you can have extraordinary! Completely rebuilt from the studs up, this spectacular estate sits on an acre with views of Mt. Diablo and Las Trampas Ridge. 400 Castanya is a marriage of sophistication & comfort. This home boasts soaring ceilings, contemporary curved glass cat-walk, open architecture, walls of windows overlooking the picturesque yard, chef's kitchen, game room, home office, 1st floor privately situated guest suite, two staircases-even the laundry room is fabulous! The master suite balcony is perfect for enjoying evening sunsets. The master bath is a dream come true featuring Carrera marble, soaking tub, oversized shower and views of Mt. Diablo. Built for entertaining both inside & out, the expansive yard has a regulation Olympic volleyball court, trampoline, pool, firepit, concealed large built-in storage, oversized garage w/dual entry access & workshop. Attention to every detail! Close to award winning schools, downtown, and commuting.