Welcome to Unit 622 at 400 Massachusetts Ave NW a spacious and light-filled residence in one of downtown Washington’s most ideally positioned full-service condominium communities. Located in the heart of Mount Vernon Triangle, just moments from Penn Quarter, Judiciary Square, and CityCenterDC, this home offers exceptional proximity to acclaimed restaurants, cafs, grocery stores, museums, Capital One Arena, and multiple Metro lines. Positioned on the sixth floor, the residence combines generous proportions with an open, functional layout designed for comfortable city living. Expansive windows bring in abundant natural light throughout the main living area, creating an airy, welcoming atmosphere equally suited to quiet evenings at home or entertaining guests. The kitchen features granite countertops, stainless steel appliances, breakfast bar seating, newly installed HVAC (11/2020), Refrigerator (4/2023) and Dishwasher (2/2025), offering both practicality and clean contemporary styling. One of the home’s standout features is its exceptionally large bedroom a rare offering in downtown DC with ample space for a sitting area, reading nook, or dedicated work-from-home setup without compromising comfort. Garage parking conveys with the unit, an increasingly valuable convenience in one of the city’s most connected urban neighborhoods. Residents of 400 Mass enjoy a full suite of amenities including: 24-hour concierge service, Fitness center, Rooftop pool, Rooftop terrace with sweeping city views, Resident lounge and party room, and Secure elevator access . Whether commuting across the city, dining out steps from home, or enjoying the energy of downtown living, Unit 622 offers an exceptional combination of space, convenience, and full-service amenities in a premier Washington address.