Attitudes matter: measuring the intention-behaviour gap in built heritage conservation

Abstract This research applies the theory of planned behaviour (TPB) to measure the gap between designers’ intentions towards heritage conservation and the actual design decisions. It aims at contributing to identify which psychological constructs (attitude, norm, perception of control) are hindering the implementation of sustainable conservation approaches in practice. The results suggest that attitudes have a significant correlation with performed behaviour, and that norms, despite impacting intentions, do not necessarily correlate with the performed actions. Using the TPB to analyse designers' behaviours is an innovative methodological approach that opens new possibilities for the design of interventions targeting behavioural change towards the implementation of sustainable conservation practices in built heritage.