I was lucky enough to visit the construction site for the 2012 Olympic based in East London. Our trip was currated by Dan Epstein (Head of Sustainable Development & Regeneration), as part of the program of events put together by Greengaged (www.greengaged.com), throughout London Design Week 2009.
The scale of this project is enormous! Everyone involved seems to be making a real effort towards a sustainable build and use of the area. We saw the soil washing plant which cleanses the soil from the chemicals that have leached there for years (the ground was previously a dump site).
The 2012 Stadium, which seats 80,000 people can be down sized to 20,00 seats after the Olympic and the materials can be reprocessed/reused. For more info: