Rajat is Director of Oxford Institute for Sustainable Development and Low Carbon Building Research Group. His research interests lie in evaluating housing performance through post-occupancy evaluation (POE) tools (POE) and local energy mapping using DECoRuM model. As Principal Investigator, Rajat has been awarded £10 million in research grants from EPSRC, ESRC, EU and Innovate UK. Until recently Rajat was PI on a £1.14 million ESRC/EPSRC funded EVALOC project on evaluating impacts of low carbon communities. He is currently PI on an EPSRC funded WLP+ project linking workplace productivity with indoor environmental quality. Rajat is also leading a United Nations (UN) funded research project on mainstreaming sustainable social housing in India (MaS-SHIP) and is co-leader (with CEPT University, India) of a Newton Fund project on building performance evaluation for India (Learn-BPE). Rajat has produced over 175 publications.