On the southern side of the courtyard is a striking building, designed by Robert Lorimer in 1917, which originally served as Marchmont House's garage. It currently houses the Marchmont Workshop, led by craftsmen Richard Platt and Sam Cooper. They make traditional furniture inspired by Arts & Crafts luminaries such as Ernest Gimson and Phillip Clissett. Everything here is made by hand, using techniques, tools and patterns passed through six generations of chair-makers since 1890.