I lead the global Buildings Retrofit team from Arup’s Cardiff office. I am passionate about the potential for retrofitting existing buildings to improve the value that buildings deliver to their owners and occupants, and to society.

I lecture and speak frequently on retrofitting at conferences around the world. I am the Chair of Wales’ Low/Zero Carbon Hub and a Member of the Welsh Government Construction Sector Panel.

I am currently leading a team producing a report on how to halve the energy demand of every home in the UK in twenty five years.