White Cube Mason's Yard opened in September 2006 in a courtyard off Duke Street St James', nearby to the original White Cube space. The building, constructed on the site of an electricity sub-station and designed by London based MRJ Rundell & Associates, is the first free-standing structure to be built in the historic St James area for more than 30 years. The building houses two major galleries that provide a total of 1110m² (11,900 sq ft) of exhibition space, comprising of a ground floor gallery on street level and a double-height, naturally-lit basement gallery. Used for White Cube's expanding programme of exhibitions, White Cube Mason's Yard has hosted a wide range of exhibitions by international artists including Andreas Gursky, Georg Baselitz, Jeff Wall, Anselm Kiefer, Robert Irwin and Miroslaw Balka. The gallery opened with an inaugural exhibition by Mexican artist Gabriel Orozco.