Facility Overview

Lot #123 at 20 Massachusetts Ave NW offers premier, secured parking positioned directly at the crossroads of Capitol Hill and the bustling NoMa/Downtown transit corridor. Serving the newly revitalized 20 Mass complex—home to upscale hospitality, luxury office spaces, and ground-floor retail—this facility provides clean, modern, and reliable parking. Accommodating standard passenger vehicles, sedans, crossovers, and typical family SUVs, drivers should note that the underground garage format maintains a standard vertical clearance (typically around 6 feet 6 inches to 6 feet 8 inches), which is unsuitable for high-roof commercial cargo vans, elevated freight trucks, or roof-rack-laden oversized overland vehicles.

Prime Location & Nearby Attractions

Strategically situated on one of the District\'s premier boulevards, this parking facility places drivers within easy walking distance of major national monuments, transit hubs, and cultural institutions:

• Washington Union Station: Just a 3-minute stroll (less than 0.2 miles) away, offering direct access to Amtrak regional and high-speed rail, MARC and VRE commuter trains, intercity bus carriers, and the Washington Metro.
• Smithsonian National Postal Museum: Located practically across the street (2-minute walk), ideal for families, philatelists, and architectural history buffs.
• United States Capitol & Senate Office Buildings: A scenic 10-minute walk south down Delaware or New Jersey Avenue brings you to Russell, Dirksen, and Hart Senate Office Buildings, as well as the U.S. Capitol Visitor Center.
• Georgetown University Law Center: Situated only 5 minutes south, making this facility prime parking for visiting scholars, students, and legal symposium attendees.
• Capital One Arena & Chinatown: Approximately a 12- to 15-minute walk west, providing a stress-free parking alternative for Washington Wizards, Capitals games, and major touring concerts.

Access, Navigation & Transit Connectivity

Ingress and egress are seamlessly integrated along the Massachusetts Avenue corridor, with convenient access from E Street NW, F Street NW, and North Capitol Street. Due to its location near Union Station\'s roundabout and major commuter arteries, morning and evening rush hours experience heavy vehicular flow. For highway commuters, Interstate 395 (Center Leg Freeway) is easily reachable via New York Avenue or the 3rd Street Tunnel, providing swift connections to Northern Virginia, Maryland, and Reagan National Airport (DCA). The Union Station Metro Station (Red Line) is steps away, enabling quick rail transfers throughout Montgomery County, Bethesda, and Downtown D.C.

Facility Amenities & Key Features

• Covered, Weather-Protected Parking: Fully subterranean stalls keep vehicles sheltered from winter snow, ice, and intense summer heat.
• Digital & Touchless Payment: Pay stations accept major credit cards, with reservation support via digital parking apps (such as ParkMobile or SpotHero).
• ADA Accessible Stalls: Designated handicap-accessible spaces located close to elevator banks and pedestrian exits.
• High-Definition Security & Lighting: Well-illuminated bays, modern surveillance cameras, and regular on-site security monitoring.
• Direct Pedestrian Elevator Access: Seamless street-level egress into the 20 Mass public lobby and surrounding street grid.

Ideal For

• Commuters & Rail Travelers: Business professionals catching early Amtrak Acela departures or commuter trains out of Union Station.
• Capitol Hill Visitors & Advocates: Congressional staffers, policy professionals, and constituents meeting at congressional office complexes.
• Arena Eventgoers: Drivers seeking to avoid intense Chinatown post-game bottlenecks by parking a brief walk away.
• Cultural Tourists: Sightseers visiting the National Mall, National Postal Museum, and historic Capitol Hill neighborhoods.

Visitor & Driver Tips

Peak morning arrivals occur between 7:30 AM and 9:30 AM on weekdays; arriving prior to 8:30 AM ensures the smoothest entry and preferred stall selection. When attending sellout events at Capital One Arena, booking your space ahead of time via partnered parking apps guarantees entry during high-demand surges. Always double-check vehicle height before descending the access ramps if you have roof luggage boxes, bike racks, or rooftop equipment attached.