Hempcrete housing development in UK

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London architects Riches Hawley Mikhail have completed an affordable, sustainable housing scheme within an existing village in Suffolk, UK.
The buildings make use of use a spray-on material made from a mixture of hemp and lime, which captures carbon from the atmosphere. A biomass heating system using locally-sourced woodchips heats all the homes from one boiler.
 
Full Article: 
http://www.dezeen.com/2008/11/18/clay-fields-by-riches-hawley-mikhail/