The new Conservative leader has appointed London-based Michaelis Boyd Associates to transform his Notting Hill home with a host of green measures.
The £1m project will feature a variety of environmental additions, including a new wind turbine for the roof of the property.
Michaelis Boyd is one of the capital's up-and-coming practices, having featured in RIBA London's Future House Competition in 2003.
The office came to prominence with a concept design, Low Build Contempory Eco House, a semi-subterranean design for a site not far from Cameron's home.
However the Cameron scheme does court some controversy. It will prove difficult to persuade planners at Kensington and Chelsea - a Tory-controlled council - to approve the roof turbine in a conservation area.