Newmark has been appointed the exclusive leasing agent for 25 Massachusetts Avenue NW, a landmark office building in Washington, D.C.’s Capitol Hill.

Newmark Vice Chairman Doug Mueller, Executive Managing Director Edwin Clark and Associate Blaire McGavin will spearhead the 385,000-square-foot leasing assignment on behalf of ownership, Norges Bank Investment Management (NBIM). “Having worked alongside NBIM for many years, I’m honored to continue this partnership at 25 Mass under Newmark’s platform,” said Mueller.

NBIM recently completed a series of improvements at the property, including a reimagined glass entry, new lobby, along with a tenant lounge and a state-of-the-art conference center. Strategically positioned one block from Union Station, 25 Mass boasts premier connectivity and a strong in-place tenancy, anchored by Google’s 100,000-square-foot offices. General Motors, American Iron & Steel Institute and National Cable Telecommunications Association also lease space at the property.