Buckingham Palace The Mall London SW1A 1AA
Internal alterations at basement, ground and mezzanine floor levels of West Wing comprising: construction of a new riser cupboard wall and door; fire lining to existing lath and plaster walls, masonry wall recess, and ceiling of the dumbwaiter shaft at ground level; construction of new GRP flooring and access hatch; removal of modern sill in ground level opening and repair of existing architrave and sill.