Premium Upper Castro Valley Retreat with Panoramic Bay Views! This custom architectural masterpiece is perched in the very best and highly coveted Upper Castro Valley neighborhood and delivers the rare combination of panoramic Bay vistas, elite privacy, and premium single-level luxury. This is truly Castro Valley's unicorn! Backing directly to serene open space with no rear neighbors, the property sits in a peaceful, tree-lined natural sanctuary. Enjoy captivating water views from the walls of windows throughout the home. Revel in seamless indoor and outdoor living as the expansive wraparound deck serves as a massive extension of the home, providing ultimate space for open-air dining, lounging, and high-end entertaining. The flexible footprint offers over 2,600 square feet of generous living space. The layout features three large bedrooms, two full bathrooms, a dramatic foyer, a family room anchored by a cozy gas fireplace, a formal living room, and a formal dining area that can easily be used as a home office or music room. The chef's kitchen is outfitted with premium granite countertops, an oversized walk-in pantry, a dedicated built-in desk, an expansive breakfast bar and a formal eat-in dining area. Turnkey infrastructure includes a jetted soaking tub in the primary suite, indoor laundry room, oversized two-car garage, central air conditioning, and full sewer lateral compliance. The location provides unmatched commuter convenience with immediate access to BART, the South Bay, the Peninsula, and San Francisco. The premier community of Castro Valley is celebrated for its top-rated schools, vibrant Castro Valley Marketplace downtown, and stunning local recreation at Lake Chabot Regional Park. Link to all photos and 3d tour: 18019Center.com/mls.