Thomas is a Sustainability Engineer with over 20 years’ experience. He is a Built Environment Expert of the Design Council and an environmental sustainability advisor to the University of Manchester. Thomas is currently working on six Passivaus and Net Zero Carbon projects for Local Authorities and housing associations. He is also regularly working on policy, including the London Borough of Tower Hamlets Zero Carbon Action Plan, the new Greater Cambridge Local Plan and research projects such as a review of Building Renovation Passports for the GLA. He is currently co-leading with CIBSE the SAP/RdSAP 11 scoping project, also collaborating with Elementa, Levitt Bernstein, Clarion Housing Group, WSP and UCL.