Royal Mint Court the 1960s little of the original mint remained apart from the Smirke building and gatehouses. The Royal Mint was based at the site until 1967, when it began moving to its current site in Llantrisant, Wales. Minting ceased at Royal Mint Court in 1975. Two new office buildings were constructed on the site in the 1980s. Designed by Sheppard Robson, they were subsequently known as Murray House and Dexter House. This brought the site's total office space to 460,000 square feet. After the Mint vacated the Murray House building on the site it was used as commercial offices by Barclays
Royal Mint Court in between 1807-1812 by Robert Smirke after Johnson died, having never seen his design realised. In honour of both architects, the building was named the Johnson Smirke Building, a namesake of both their surnames. Aiming to increase mint production, the building was designed for multiple purposes including to house new mint machinery, act as a bullion store, the mint's office and apartments for mint officials. The long façade of the three-storey rectangular stone building has windows with Doric order running through the first and second floors. A broad central pediment sits above featuring the royal coat of arms engraved in