Exceptional Whitegate Estate with Detached Casita/ADU! Situated on a desirable corner half-acre lot in one of Riverside's most prestigious neighborhoods, this impressive property offers space, comfort, and versatility rarely found in today's market. The approximately 4,000 sq. ft. main residence features 4 bedrooms, 4 bathrooms, multiple living areas, and an ideal layout for both everyday living and entertaining. The expansive primary suite serves as a private retreat with a cozy fireplace, jetted soaking tub, separate shower, dual vanities, and a generous walk-in closet. Three additional bedrooms offer oversized closets, while thoughtful storage can be found throughout the home. The spacious kitchen is equipped with double ovens, a gas cooktop, abundant cabinetry, and opens to the formal living and dining rooms. A welcoming family room with fireplace, wet bar, and built-in media center provides the perfect gathering place, while the oversized game room overlooks the sparkling backyard pool. Comfort and efficiency are enhanced by newer HVAC upgrades (2023), including updated condensers, furnace, ductwork, and 2 whole-house fans (2021) Two separate two-car garages provide ample parking, storage, and flexibility. One of the property's most desirable features is the detached casita/ADU, offering approximately 704 sq. ft. of independent living space. Complete with its own bedroom, bathroom, spacious kitchen with full-size appliances, private laundry room, central heating and air, and a large walk-in closet, this space is ideal for multigenerational living, guests, a home office, or potential rental income. Guest house can potentially rent for $2,000 or more. Surrounded by mature trees and located in the highly sought-after Whitegate community, this remarkable property offers a rare combination of elegance, functionality, and opportunity in a truly exceptional setting. At night, you'll hear the owls that live nearby!