Discover this charming colonial-style brick home at 3500 Shepherd Street, ideally located on a desirable, tree-lined street in the heart of Chevy Chase. What truly sets this property apart is the highly versatile, attached above-grade apartment, offering unparalleled flexibility and significant value. This self-contained unit is perfectly designed to serve multiple purposes: Rental Income-Generate steady income with a highly desirable, independent rental unit; Multi-Generational Living-Provide a comfortable and private space for extended family; Au Pair / Caregiver Suite-An ideal arrangement for live-in support; Private Guest Retreat-Offer visitors their own dedicated amenities; Executive Home Office-A professional and separate workspace. This bright apartment features its own kitchen with quartz countertops, new carpet throughout, a charming built-in bookcase, a sunny bay window, and a full accessible bathroom. The spacious bedroom includes a large closet. For complete independence, it comes with an in-unit washer and dryer, a separate entrance, its own electric panel, and a dedicated attic space for storage. The apartment is seamlessly connected to the main home by a light-filled entrance with a skylight, blending convenience with privacy. The main residence features four bedrooms and three full bathrooms. Its traditional layout showcases beautiful, refinished hardwood floors, a formal dining room, and a full kitchen equipped with granite countertops, stainless steel appliances, and a convenient outside entrance. The comfortable living room includes a cozy wood-burning fireplace, and a versatile first-floor room offers flexibility as a bedroom, home office, or den. Upstairs, you'll find three bedrooms, including a primary suite with an en suite bathroom and walk-in shower. A full guest bathroom provides a tub/shower combination. Adding significant living space is the fully finished walk-out basement. This lower level provides a full bath, utility/storage room, and three separate rooms ideal for recreation, a home office, a gym, or guest quarters. The spacious rec room, with a wood-burning fireplace, is perfect for entertaining. The walk-out offers easy access to the sizable, partially fenced backyard, creating a wonderful setting for outdoor enjoyment. Its prime location offers easy access to vibrant downtown Bethesda, the shops and restaurants of Friendship Heights and Chevy Chase. Don't miss this opportunity to own a truly special Chevy Chase gem!