Demolition and replacement on a revised footprint of an existing two-storey rear addition to facilitate the provision of new double-pitched roof structure for the building to allow the raising of eaves level on the front elevation together with re-arrangement of the existing fenestration including the removal of one existing roller-shutter door and personnel door and window and the provision of new first floor fenestration to the front elevation, installation of new external cladding and provision of solar panels to rear roof slope together with internal re-organisation at ground floor level alongside the provision of additional and re-organised space at first floor level to allow the provision of ancillary office space, a packaging area, storage area and assembly area