Use of the site for a Howdens depot (Use Class B8) together with ancillary trade counter, showroom and offices, the laying out of the adjoining yard for customer parking and circulation space, together with retrospective consent for changes to existing building elevations comprising: (a) on the eastern elevation - erection of an external staircase from ground floor to first floor level; the replacement of existing window with new entrance doors at ground floor level; the replacement of existing door with a window at ground floor level on the eastern elevation; and installation of an access ramp and railings; and (b) on the southern elevation - replacement of existing double door with roller shutters at ground floor level on the southern elevation.