People stop to take photos and look at a new Banksy artwork in Cheltenham. 14th April 2014. (file photo) See SWNS story SWBANKSY; The owner of a property where Banksy daubed his 'Spybooth' artwork claims the mural has made his life a misery. David Possee could have expected a windfall after the work was sprayed onto the side of his end-of-terrace property near the Government's GCHQ listening post. But after the stencil was granted Grade II listed status he is unable to remove and sell the artwork and cannot carry out building work to make the house habitable. As a result he cannot rent out the property, which is standing empty.