Court of Session 27 February 1992 Claim by plaintiffs (P) for reparation for alleged professional negligence arising out of a valuation report prepared by a firm of chartered surveyors. The report valued P`s home at £34,000 and described the method of construction as traditional. Two years later when P tried to sell, it was found to be of non-traditional construction known as PRC, identified as Dorran type of construction. The house was valued at £25,000. P sought damages of £18,000. Held that failure to identify the type of house was an act of negligence. On the evidence the diminished values of PRC were well known by the date of the report in 1982 and such houses were fetching lower prices than those of traditional construction. There was also evidence that by 1982, some building societies, surveyors and estate agencies were not entirely happy about Dorran houses. Had the surveyors recognised that P`s house was a Dorran type they would have valued it in the region of £25,000. Damag