Socially responsible investment (SRI) has taken on increased significance in recent years, as investors have given an increased priority to environmental, social and governance issues in their investment decision-making, and companies have focused on the triple bottom line. This has also seen the development of socially responsible property investment (SRPI). Given the overall significance of commercial property as an investment, it is important to assess the contribution of commercial property in SRI. The purpose of this paper is to assess the significance of UK property companies in the context of SRI. In particular, the significance of UK property companies in the various global sustainability/SRI benchmarks will be assessed. A UK SRPI index will be developed and its risk-adjusted performance assessed over 2000-2008.