Spencer de Grey

Spencer is Head of Design at Foster + Partners and set up the Hong Kong office in 1979. He has worked on a wide range of cultural, civic, education and masterplan projects. He is curator of the architecture room at this year's Royal Academy Summer Exhibition.

Jeremy Till

Jeremy is an architect, educator and writer. He is head of Central Saint Martins and Pro-Vice Chancellor for Research at the University of the Arts London.

Maria Smith

Maria is Director of architecture and engineering practice Interrobang, and Webb Yates Engineers. She is currently running for RIBA Council on the basis that the RIBA can and should do more to support the profession in taking urgent and incisive climate action.