You arrive on site with detailed plans of the buried services. The electricity and telecommunications can be readily confirmed with your Cable Avoidance Tool (CAT); the route of the gas main, sewer and water main are visually located through pavement scarring and covers.

It was with great interest that I read an article on Basement Impact Assessments (BIAs) in a recent issue of Ground Engineering magazine, with particular reference to BIAs carried out in London Borough of Camden.