Although asbestos was banned in 1999 it was widely used in a variety of construction materials throughout the 20th century. While many buildings still contain a lot of asbestos materials they are generally safe as long as they are undisturbed. Any asbestos deemed unsafe will need to be inspected and removed by a licenced asbestos contractor. If your surveyor has mentioned asbestos in your report there may also be unseen materials comprising asbestos within the property.