Surveyor variability in large‐scale house condition surveys

Abstract

Deals with surveyor variability, in terms of identifying defects, when undertaking surveys of residential properties. It is based on a sample of 38 surveyors who took part in a large‐scale house condition survey (LSHCS). Seeks to quantify the extent of the variability of surveyors in LSHCS, and proposes methods to try to reduce the incidence of variability. Discusses not only the variability of surveyors in identifying defects to building elements, but also their perceptions of lifetimes for building elements. Concludes that the accuracy of data collection (i.e. the process of surveying a dwelling) is paramount if the information derived from the data is to be of value to the parties described. Also concludes that a mechanism for assessing individual surveyor’s variable tendencies needs to be developed to try to reduce the impact of variability at the survey data analysis stage.