Elegant Two-Story Mediterranean Gated Estate on One Acre in Prestigious Las Posas Estates. Set on one of the most desirable streets in the Las Posas Estates, this extraordinary one-acre gated property offers a perfect blend of privacy, timeless Mediterranean design, and exceptional craftsmanship.A dramatic wood-floored entry with two story ceiling welcomes you into a home rich in detail and natural light. Expansive windows frame captivating western views and lush garden scenes while flooding the interiors with sunlight. Spanning more than 5,000 square feet, the residence features five bedrooms plus an office (and potential ADU) and six bathrooms, designed for elegant living and effortless entertaining. There are four spacious bedrooms upstairs, with three full baths. Downstairs there is a guest room with bath, next to the room that is currently utilized as a billiard room, which has the potential to be an ADU.  The grand primary suite is a serene retreat, with remodeled and updated spa-inspired bathroom with dual vanities, dedicated make-up seating, a luxurious soaking tub, and an oversized glass-enclosed shower with multi-heads. Dual custom walk-in closets complete this exceptional suite.The gourmet kitchen is the heart of the home, a perfect setting for the passionate home chef.Additional highlights include:Step-down formal living room and elegant formal dining roomInviting family room with vaulted ceilings overlooking the gardens and sparkling poolDual staircases offering architectural symmetry and flowFully owned solar systemFour-car garage with ample storageFor those seeking multi-generational living or guest accommodations, the property offers a potential ADU conversion opportunity with a large downstairs room and full bath--ideal for a self-contained suite with a kitchen and dining area. The extra large laundry room with soaking sink, sauna and quarter bath. Outside, the grounds are designed for both recreation and relaxation, with a resort-style pool, sports court, and lush landscaping that enhances the property's beauty and privacy.A rare combination of elegance, comfort, and versatility--259 Valley Vista embodies the best of Las Posas Estates living.