Nestled in the heart of Castro Valley, 4448 Gem shines as the crown jewel of the neighborhood! With approximately 1964 square feet, the main house features 4 bedrooms & 2 full bathrooms. The upper level hosts 3 of the bedrooms, 1 bathroom, living room, kitchen, & dining area. The lower level has many possibilities & can function as a 4th bedroom, in-law unit, or rental unit as it has a bedroom area, living space, full bathroom, second kitchen, walk-in closet, & separate entrance. There is ALSO an attached 443 sq ft studio unit that is fully separated from the main house and it offers a bedroom area, kitchen & full bath that can be used as a rental unit, or for one's own uses such as an art studio or home office! Updates include luxury vinyl floors, fresh paint, renovated kitchen & baths, new lighting, dual pane windows, fences, & driveway. The 17,000 sq ft lot boasts park-like grounds & borders tranquil crow creek. It offers a shed, planter boxes, & a large deck. A new driveway provides side access & boat/RV parking. Prime CV location with one block to Creekside Middle School, & walking distance to Earl Warren Park! Enjoy the shops, services, & restaurants of Castro Village and the new Castro Valley Marketplace. Close to CV Bart & major highways! 3d tour: www.4448Gem.com/?mls