Regent's Place, London Central London has more than 700 green roofs covering in excess of 17.5 hectares, according to the map created by the Greater London Authority and the Green Roof Consultancy in 2013. by Josephine Smit Sign in to continue Sign in Email address Password Stay signed in Trouble signing in? Reset password: Click here Email: hwsupport@haymarket.com Call: 020 8267 8121 Register FREE 14 days limited access to subscriber-only content Register Subscribe From £299/pa Full access to horticultureweek.com Monthly print issue for 12 months Keep track of competitors, market trends, and policy changes with sector specific email bulletins Live email alerts from the pest and disease tracker New project leads and business prospects every week through the landscape leads service Bespoke multi-user packages available Choose a Package