This one-level Mid-Century Modern home in desired Hollin Hills, designed by renowned architect Charles Goodman with a large addition by Eason Cross, has been beautifully updated inside and out. The new glass front door opens to a spacious foyer addition with ceramic tile flooring and dual coat closets. The open-concept living and dining areas feature a wood-burning fireplace set in a striking brick wall, with floor-to-ceiling windows offering garden views. The kitchen includes new quartz countertops, sink, faucet, disposal, refrigerator, range hood, and breakfast bar with added storage. Two separate bedrooms and a full bath with new skylight glass and a solid cedar skylight curb, filling the space with natural light. A large third bedroom offers new lighting and an attached half bath. The addition provides two more bedrooms-currently used as an art studio and home office-with refinished cedar accent walls. Additional upgrades include a new shingle and TPO membrane roof with custom square gutters and downspouts, new cedar siding on addition, underground electric and internet, a restored custom shed, new water heater, washer, dryer, updated electrical and lighting, and fresh interior and exterior paint throughout. The grounds have been thoughtfully redesigned for sustainability and beauty. Two hand-built stone retaining walls and a new natural stone walkway enhance the backyard. Supported by a conservation landscaping grant, the main drainage swale was deepened, lined with river rocks, cleared of invasives, and replanted with native trees, shrubs, and perennials to create a thriving pollinator garden. The removal of English ivy and replanting with 90% native species earned the property official “Wildlife Sanctuary” certification from the Northern Virginia Bird Alliance. Designed by a certified Virginia Master Naturalist, the large corner lot now features an arboretum-like canopy of mature trees, blending architectural heritage with ecological harmony.