400 Massachusetts Ave Condos For Sale | Washington, DC

Explore 400 Massachusetts Ave condos for sale in downtown Washington, DC. Known as 400 Mass, this contemporary condominium building at 400 Massachusetts Avenue NW offers urban residences, rooftop amenities, and convenient access to Metro, restaurants, shopping, and cultural attractions.

Located near Mount Vernon Triangle and Penn Quarter, the 13-story building features 256 condominium residences with a variety of floor plans. Buyers exploring Washington, DC homes for sale will find an established high-rise community designed for convenient downtown living.

400 Massachusetts Ave Fast Facts

Condominiums at 400 Massachusetts Avenue

400 Mass offers a range of condominium layouts, from efficient studios to larger residences with multiple bedrooms. Many homes feature open living areas, oversized windows, and contemporary kitchens.

Depending on the residence, features may include hardwood flooring, granite countertops, stainless steel appliances, walk-in closets, and private balconies. Select floor plans incorporate curved walls that reflect the building's distinctive exterior architecture.

Upper-floor residences may offer views of the surrounding city. Buyers should compare individual units for exposure, natural light, storage, and parking rights.

Rooftop Pool and Building Amenities

One of the building's defining features is its rooftop swimming pool and outdoor deck. The elevated setting offers space for relaxation and views across downtown Washington.

Additional amenities include a fitness center, resident gathering spaces, billiards room, business facilities, and concierge services. The building also provides garage parking and storage options, subject to availability.

Prospective buyers should confirm current amenity access, guest policies, and any additional charges with the condominium association.

Living Near Mount Vernon Triangle and Penn Quarter

400 Massachusetts Avenue occupies a central downtown location near Mount Vernon Triangle, Penn Quarter, and Judiciary Square. Restaurants, neighborhood services, entertainment venues, and shopping are accessible throughout the surrounding area.

Capital One Arena, the National Building Museum, and the Walter E. Washington Convention Center are nearby destinations. The building's location also provides convenient access to government offices and downtown employment centers.

Buyers comparing nearby residential communities can explore Mount Vernon Triangle homes for sale and Penn Quarter homes for sale.

Metro and Transportation

Gallery Place–Chinatown Metro station provides access to the Red, Green, and Yellow lines. Judiciary Square on the Red Line is another nearby station.

Metrobus service, Capital Bikeshare, and downtown pedestrian connections offer additional commuting options. Union Station is also accessible for regional rail and Amtrak service.

Buying a Condo at 400 Mass

Buyers should review condominium association financial statements, reserve funding, insurance coverage, and any planned capital improvements. Rooftop amenities, elevators, and shared mechanical systems require ongoing maintenance.

Confirm whether garage parking or storage conveys with a particular residence, and review applicable pet policies and leasing restrictions.

For additional downtown condominium options, explore Mount Vernon Square homes for sale.

Frequently Asked Questions About 400 Massachusetts Ave

Where is 400 Massachusetts Ave located?

The building is located at 400 Massachusetts Avenue NW, Washington, DC 20001, near Mount Vernon Triangle and Penn Quarter.

Is 400 Mass a condominium building?

Yes. It is a residential condominium building with 256 units.

When was 400 Massachusetts Ave built?

The building was completed around 2004–2005.

How many stories does the building have?

400 Mass has 13 stories.

Does 400 Mass have a rooftop pool?

Yes. The building features a rooftop swimming pool and outdoor deck.

Is garage parking available?

The building has underground garage parking. Buyers should verify whether a space conveys with a particular unit.

Are pets allowed?

Pets are permitted subject to building rules. Buyers should verify current restrictions and registration requirements.