Columbia Property Trust (CXP) has announced that vertical construction has commenced at 80 M Street, the three-story, 105,000-square-foot expansion of the Capitol Riverfront tower in Washington D.C.

When completed in 2022, Columbia’s expansion at 80 M Street will create an ideal environment for office tenants seeking creative, light-filled, sustainability and wellness conscious space in the popular Capitol Riverfront neighborhood. American Trucking Associations has leased more than half of the vertical expansion space, which will serve as its new headquarters. The expansion is the district’s first commercial office construction project to rely primarily on mass timber and glass.

“We are always seeking ways to create high-performance buildings that cultivate exceptional work environments for our tenants, add value for our investors, and generate positive environmental impacts for the greater community,” said Paul Teti, executive vice president of National Real Estate Operations at Columbia Property Trust.  “Our mass timber expansion at 80 M checks all of these boxes, with its singular blend of innovative design, enhanced sustainability and wellness features, and modern efficiencies, and we believe it is the most uniquely attractive workspace available in the D.C. market at this time.”

The engineering firm constructing the expansion space is Arup.