How much does a building project cost? When is it less expensive to replace a building with a new one than to renovate it? What key figures point the way to the most sustainable procedure? These are the sort of questions Caretta+Weidmann’s quantity surveyors and cost planners deal with day in day out. Whilst developing projects, during competitions and all the subsequent planning phases they advise and assist the contract awarders and architects in every single aspect of quantity surveying. They work out the expected construction costs, analyse complex structural correlations and develop realistic solution scenarios. In doing so they utilise calculation and visualisation instruments that ensure reliable cost management.