The only time you'll ever want your property to be defaced by a graffiti artist is if its by Banksy. Then suddenly you've got a valuable piece of art right on your doorstep. The pupils and teachers of one British primary school are the latest to be honoured.

BanksyBanksy's been at it again

Bridge Farm Primary School in Bristol decided that they would name one of their classrooms after the elusive contemporary artist recently, and sent a letter to Banksy to let him know about their dedication. In true Banksy fashion, he secretly took over their playground during the half-term break to leave them a token of his appreciation.

On the wall of one of the buildings is a six-foot high child-like doodle of a house, a flower and a child holding a stick; the child is chasing a more elaborate sketch of a car tyre which had been set alight. Plus, he'd also written his own name, 'Banksy', at the bottom of the image despite the fact that he never usually signs off his work.

According to the school's headteacher, a note was also left by the artist for the pupils reading: 'Dear Bridge Farm School, thanks for your letter and naming a house after me. Please have a picture, and if you don't like it, feel free to add stuff. I'm sure the teachers won't mind. Remember, it's always easier to get forgiveness than permission. Much love, Banksy.'

The tongue-in-cheek, mischiveous tone of the painting and the letter certainly seems genuine enough, and the head explained that he received confirmation from the PR company to whom he originally told about the 'house' naming competition.

More: Has Banksy's identity been uncovered?

'We ran a competition to change the house names, and we decided to name them after Bristol legends', he told the Bristol Post. 'We had to include Banksy. We thought it would be a good idea to write to the PR company and let them know we've run the competition.'