1. Building a Greener Britainhttp://www.fmb.org.uk/news/campaigns/building-a-greener-britain/
2. Department of Energy and Climate Changehttp://www.decc.gov.uk/assets/decc/What%20we%20do/A%20low%20carbon%20UK/1358-the-carbon-plan.pdf
3. PASSIVHAUShttp://www.passivhaus.org.uk/standard.jsp?id=122
4. AECB, Carbon Litehttp://www.carbonlite.org.uk/carbonlite/passivhaus.php
5. Trafford Eco Househttp://traffordecohouse.wordpress.com/2009/01/03/a-passivhaus-passive-house-renovation/