Columbia Property Trust has announced the topping off of 80 M Street’s three-floor mass timber vertical expansion.

The project will add 105,000 square feet boutique-style space atop Columbia’s existing Capitol Riverfront office building. Once completed in 2022, it will become D.C.’s first commercial offices to rely primarily on mass timber and glass. More than half of the expansion will serve as the American Trucking Association’s new headquarters.  The remaining 55,000 square feet of office space created via the expansion remains available for lease.

“The mass timber expansion at 80 M will soon house D.C.’s most unique creative office space,” said Patrick Keeley, senior vice president and D.C. Region Lead at CXP.  “As the first in the District to employ this sustainable, cutting-edge building technique, our project has certainly captured the imagination of a wide range of local developers and builders who have asked to tour the project site in recent months.”