Welbeck Street Car Park, Marylebone, Westminster, London, c1970-c1980. An exterior view of the Welbeck Street multi-storey car park, showing the south-east corner from Henrietta Place, possibly during construction. Completed in 1970, the car park was designed by Michael Blampied and Partners, and was commissioned to serve shoppers who would used the nearby flagship department store, Debenhams. The external walls have pre-fabricated concrete triangles that are load-bearing which support reinforced beam and plank floors within the car park. Underneath, the ground floor has an arcade with geometric heads and V-shaped keystones, partially obscured by scaffolding and boards.