But how do you mow the roof?

Housing chiefs in Shropshire have today unveiled the unusual insulation system at their new housing complex - a living grass roof.

The Wrekin Housing Trust hopes the innovative grass system will save power and help maintain a consistent temperature at the development at Arleston Lane in Wellington, Telford.

Jean Teichmann, head of development, said: "We are really excited about the new roof as this is the first that the trust has had installed. It provides thermal mass, meaning the roof keeps the building cool in summer and warm in winter, which will be great for our tenants."

Trust chiefs believe it is one of the first times a grass roof has been installed at new housing in Shropshire.

Grass can provide a long-lasting, environmentally-friendly roofing service that will last two to three times longer than a conventional slate roof.

Residents should benefit from lower heating bills at the 20-home block, that features 11 two-bed apartments, eight three-bed houses and one four-bed house.

The Wrekin Housing Trust also hopes the roof will also be attractive for nearby residents and provide a rich habitat for wildlife.

The new complex, near AFC Telford United's New Bucks Head ground, replaces derelict flats.