“…Despite this surge of interest, the prevalence of SD in the CI is still lagging behind that of other industries (Cabinet Office, 2011). A number of reports in the literature have investigated this and have identified a number of barriers which preclude implementation namely cost (Sponge, 2004;Cotgrave, 2008;Pitt et al, 2009) lack of knowledge (Chong et al, 2009;Constructing Excellence, 2008;Baker and Associates, 2006;Sponge, 2004), patterns of ambiguity in legislation (Cooper et al, 2005;Rodriguez-Melo and Mansouri, 2011) and unclear roles of responsibility (Osmani et al, 2006(Osmani et al, , 2008Saunders and Wynn, 2004).…”