The structure is by far the most important part of the building survey. given that structural problems can be expensive to repair. The structural part of the building survey involves examining all visible parts of the exterior, the roof, interior walls, ceilings, floors, attic space, doors, door frames and window frames. Particular attention is paid to visible evidence of past or present movement such as cracks, settlement, bowing, sagging and lifting. Covered: Roof, walls, floors, pillars, chimney, insulation, foundations, facade, damp, structural movement. Visible additions or alterations to the original structure are also noted.