Peter studied architecture at Cambridge University and holds a doctorate in energy studies from the Open University. He has over thirty-five years of experience as an energy and sustainability consultant working for the building and housing industries. In recent years he has specialised in domestic retrofit, and he played a leading role in the Retrofit for the Future programme as well as helping to develop the acclaimed Retrofit Coordination and Risk Management training for the The Retrofit Academy.

He is a member of the Each Home Counts Implementation Board and chairs the BSI Retrofit Standards Task Group, which is developing a framework of technical standards for domestic retrofit. Peter’s current work involves assisting housing organisations to integrate sustainability and retrofit into their asset management strategies, dealing with condensation damp and mould problems, delivering training and preparing technical guidance about retrofit.

Robert Prewett is a director at Prewett Bizley architects, a practice that has strong focus on low energy design, in particular retrofit work to existing buildings.

In 2009 he led the design and execution of a deep retrofit of a house within a conservation area in Hackney, where heating demand was successfully reduced by 90%. Since then the practice has completed a number of other retrofit projects, and has established itself as specialist in this field.

Robert has contributed to a set of low carbon retrofit guides published by the Institute for Sustainability, in which he set out the case for the role of ‘retrofit coordinator’. In 2013 the RIBA has invited him to co-host a series of 13 CPD presentations around the UK on the subject of building physics in relation to retrofit.

Prewett Bizley is a founding member of the UK Passivhaus Trust.

Alan Pither has been professionally involved in energy efficiency assessment and advice since 1985, running a small company based in Shropshire since 2002. Alan Pither Ltd is an ABBE and City & Guilds approved centre for all of the energy assessor qualifications and regularly delivers training courses for BRE and NHER. He also leads the Energy Advice Training Consortium which has developed a range of courses for energy advisors at different levels. In addition to training he offers a range of consultancy services to local authorities, housing associations and individual building owners. These include the development of energy efficiency and climate change strategies as well as building surveys and recommendations for energy efficiency improvement measures. The latter cover all types of building but the majority are large domestic properties that are being refurbished and/or extended, usually off the mains gas grid so advice on alternative heating options is also needed.