Located in historic Logan Circle in Washington, DC, the Old Korean Legation Museum, built in 1877, became the Korean Legation in 1889. In 2015, the restoration of the building began and in 2018 it  was opened to the public as a museum of Korean culture and heritage.

C&H Restoration and Renovation was tasked with creating the structure for the 3rd floor and attic floor systems, and also the recreation of the 180 degree floating stairs from the 2nd to 3rd floor.