The Archives Centre incorporates five floors, plus a mezzanine floor and includes three floors of temperature and humidity-controlled storage rooms, a specially designed conservation room, offices, facilities for public meetings and a public search room. The entrance and main reception area have a stark finish of concrete, but a classical appearance has been achieved by the installation of concrete columns and curved walls. The storage rooms are large utilitarian areas racked out with a Bruynzeel storage system. On the fifth floor, the search room, which is open to the public, has a light, airy feel with one large window which has a stained glass in-fill. The external elevations are made up of hand-made facing bricks divided by a light-coloured stone branding reflecting buildings in the immediate area and on Westminster Cathedral. Fluted brickwork panels over the main entrance rise over the City's coat of arms. The semi-conical roof is clad in copper sheeting.