An architectural jewel set in an expansive magical urban oasis with terraced gardens with stone retaining wall and decorative brick walls, giant mature oaks, and maples trees that shade the reflecting pools and fountain. Potential for swimming pool. With international influence from its award-winning architect, this home has been featured prominently in many publications including the Washington Post and is noted for its timeless architecture, creative design, fine materials, and Midcentury modern craftsmanship. With a large sun-filled room and great flow, this home offers a smooth transition between interior and exterior spaces. The home is ideal for indoor and outdoor large-scale entertaining, yet comfortable and convenient for private everyday living. Special features include a stunning grand living room with marble fireplace and mirrored alcoves in addition to a cozy library with a fireplace overlooks the terraced gardens and fountains. In total there are 4 bedrooms/3 Baths, 3 fireplaces. A contiguous studio-suite has its own separate entrance, kitchen/dining, large bath, and a bedroom, overlooking a patio and private garden with private separate entrance and carport with parking for two. Location: Mass Ave Heights is one of the most prestigious DC neighborhoods going back to 1887 and is favored by diplomats and high-level government officials. Dreamy tree-lined streets and magnificent grand residences are set on the edge of Olmstead lush Rock Creek Park with many recreational choices. In close proximity to the Metro, the finest hotels, restaurants and within easy access to the Kennedy Center, the White House, Reagan National and Dulles airports, this magnificent home is a tranquil green retreat in the midst of the city. Sited above 28th Street, with vehicular access from McGill Terrace this residence projects an intriguing presence.