As part of the 'Design for Performance' Project, this feasibility study reviews the potential for a UK implementation of a 'Design for Performance' approach, similar to the NABERS Commitment Agreement used in Australia. It sets out the justification, structure and actions required for creating a UK Commitment Agreement whereby a developer of a new building or major refurbishment commits to achieving a specific, measured in-use energy target. Its findings result from extensive input by Australian and UK experts and widespread consultation with the many stakeholders from both property and construction industries who are involved in creating and then managing large, new office buildings.