Bristol firm Osborne Clarke will advise Barratt Homes on the construction of the country's first eco-village after helping it win the Government contract.
The 200-house village will be based on the former Hanham Hall Hospital site near Bristol. The site was identified under the Carbon Challenge, run by English Partnerships for Communities and Local Government. English Partnerships was represented by Bond Pearce partner Ian Dunn.
The development will need to meet the Government's most stringent guidelines for green housing - level six of the Code for Sustainable Homes.
"This is really groundbreaking stuff for Osborne Clarke," said partner Simon Speirs. "The whole process has to be done in an environmentally sustainable way."
Head of renewable energy Alan John added: "The project has a feeling of breaking new frontiers about it and we can bring the benefit of our experience to the project. We can add the deep green tinge."
The firm also advised Crystal Rig II on its agreement to sell EDF Energy the offtake from its planned wind farm. EDF was advised by in-house counsel Lisa Deverick.
The deal is understood to be the largest of its kind by an independent renewables generator in the UK.
EDF will acquire the energy and green certificates from Crystal Rig. The wind farm will be built in the Lammermuir Hills, Scotland, and will provide enough renewable electricity to supply up to 100,000 households annually.
"We have been working on environmental business since it first emerged; we are now beginning to see the investment come good," said Speirs.