Unizo's office building at 1111 19th St. NW has just signed its second deal this month to expand a tenant's footprint by more than twice its size.

Financial consulting firm Edgeworth Economics is adding 20,500 SF to its 18K SF office in the building, bringing its total footprint to 38,500 SF.

West, Lane & Schlager Realty Advisors principals Ganon Rich and Jonathan Danziger brokered the deal on behalf of the tenant. The company has grown by more than 400% since 2012, when it occupied 9K SF in the building.

“Due to our client’s substantial growth in recent years, Edgeworth Economics required a significant amount of additional space,” Danziger said in a release. “After extensive analysis, it made sense for the firm from an operational, location and financial standpoint, to expand within 1111 19th St. NW, rather than relocate or bifurcate their DC headquarters.”

Tokyo-based investor Unizo bought the 270K SF building for $203M in August, capping off a nine-building, $1.4B D.C. acquisition spree over the course of 18 months. Earlier this month, humanitarian group Mercy Corps doubled its footprint in the building to 10K SF.

The building also serves as the HQ for Blackboard, an education technology company that moved to a 71K SF spread in the building in 2015. Popular convenience store and hoagie shop Wawa opened its first D.C. location in a 10K SF ground-floor space in the building in December.