Departmental Energy Greg Clark To ask the Secretary of State for Wales what steps have been taken by (a) his Department and (b) its agencies to improve the thermal efficiency of their buildings in the last 12 months. Mr. Paul Murphy The Wales Office undertook an energy efficiency test in 2008 and reached a C grading. We continue to look for ways to improve the energy efficiency of the building, although we are limited in our ability due to the Grade 2 listing of the building.