ABSTRACT
Investment valuers today have a bewildering array of possible approaches and methods available to them. In fact, there may well be too many options available. Each approach has different characteristics and requires different assumptions. Two valuers tackling the same valuation task with the same set of evidence could arrive at a different opinion of value simply due to the choice of methods they each select. Theoretically this should not happen: all methods, with the same assumptions made, should produce the same answer. The problem is that with the range of approaches available it is not obvious whether the assumptions made in different models are equivalent. The RICS has never wanted to be too prescriptive in this area but this is surely an area that needs to be looked at very closely.
