headingdon shark house

[slideshow]the headington shark will be 24 years old on the 9th of aug 2010.The 25ft fibreglass structure was put up on the roof of BBC Oxford radio presenter Bill Heine’s house in New High Street, Headington, on August 9, 1986, without planning permission.After years of driving past it,takeing photos of it for the oxford journal and oxford courier,there is one thing i always wanted to know why?