Welcome to 4228 40th St NW in the heart of sought-after American University Park, where timeless elegance meets modern comfort with Parking and Private backyard in one of Northwest Washington's most desirable neighborhoods. With a walking score of 8.8/10, within close proximity to the Tenleytown-AU Metro Station, neighborhood shops, restaurants, grocery stores( Whole Foods, Lidl, Wegmann's, Target), parks, and everyday conveniences, this location offers the lifestyle buyers are searching for connected, and rooted in a true sense of community. Blending classic 1939 character with thoughtful, high-quality upgrades, this beautifully maintained home feels refined, warm, and effortlessly livable. Every improvement has been completed with exceptional care and craftsmanship, creating a residence that honors its architectural heritage while embracing modern living. At the center of the home, a stunning kitchen renovation transforms the original layout into a bright, open space designed for both everyday living and entertaining. A custom quartz island anchors the room, complemented by premium GE appliances and solid oak flooring carefully matched to the home's original hardwoods. Throughout the home, restored 1939 oak floors and the original staircase preserve timeless charm, while fresh interior paint and updated lighting create a polished and cohesive feel. The upper level features a spacious primary ensuite bedroom with a full bath, along with an additional bedroom and a hall bath enhanced by a skylight that fills the space with natural light. There is also on the top floor a smaller room that offers wonderful flexibility and is ideally suited as a home office, allowing the home to easily adapt to changing needs. The lower level adds exceptional versatility with new flooring, abundant storage, and a high-end Samsung washer and dryer, along with direct access to the rear yard. Whether used as additional living space, recreation space, or for everyday functionality, it enhances the home's livability. Outdoor living is a true standout. The private backyard has been thoughtfully designed to feel peaceful, secluded, and highly functional. A newly added privacy partition enhances the sense of retreat, while mature landscaping and year-round greenery create a lush setting with minimal upkeep. Perfect for al fresco dining, entertaining, weekend gatherings, or simply unwinding outdoors, this inviting space extends the home's living experience beautifully. A private Off-street parking further adds to the convenience of daily life. Major system improvements provide lasting confidence, including a full roof replacement in 2021, complete electrical modernization in 2024, and custom energy-efficient windows installed in 2024 with wood blinds. Enhanced HVAC and ventilation improvements support comfort throughout the seasons. Adding even more long-term appeal, the home is served by highly regarded schools including Janney Elementary School, Deal Middle School, and Jackson-Reed High School. With its exceptional location, thoughtful updates, private outdoor retreat, Parking and enduring architectural character, 4228 40th St NW presents a rare opportunity to enjoy the very best of American University Park living.