Having completed in 2002 a carbon-neutral mixed-use development at Wallington, near London, BioRegional Development Group is planning one 25 times bigger with 2,000 homes called Z-Squared.
Hoping to find a site east of London this year, the firm has yet to appoint an architect for the zero-carbon development. Being site-dependent, energy systems have yet to be selected. But they will include cogeneration and use exclusively renewable sources, says project manager Nicole Lazarus.