While MD of Greenpeace, in 1989, he bought and oversaw the refurbishment of an old animal testing laboratory in Islington as Greenpeace UK’s new HQ – London’s first green commercial building. In 1990 he created and became CEO of the Earth Centre national millennium project, commissioning some of the world’s finest architects, designers, artists and engineers to create a living showcase for sustainability best practice. In 2001, he co-founded the Beyond Green group, which he chaired until 2015 working across strategic built environment consultancy, direct development and communications.