Welcome to this modern light-filled condominium with 1,366 square feet across an open floor plan. The living area features warm wood floors, picture windows, and access to the balcony. There is ample space for living and dining. A breakfast bar with track lighting connects the living area to the kitchen. The kitchen features granite counters and a handsome slate backsplash as well as stainless steel appliances. There are two bedrooms, one with a walk-in closet. 2.5 bathrooms plus convenient in-unit laundry complete this fabulous offering.Nestled between K and H Streets, it's easy to see why neighbors love calling the magnificent 400 Mass home. Packed with amenities, residents enjoy a spacious community room, billiards room, fitness center, business center, 24-hour concierge, security, and more. The fabulous rooftop terrace with gas grills, swimming pool, and sweeping views of the city will be a favorite spot to unwind. Everything you need is at your doorstep with endless dining, retail, and entertainment options nearby. Commuting around or out of the city will be a breeze with Metrobus outside, I-395 one block away, and Gallery Place, Judiciary Square and Mt. Vernon Square Metros all only three blocks away. 2 garage parking spaces convey.