Pop superstar Madonna has no plans to live in her latest $12 million (GBP6 million) property purchase - she's turned the London mansion into a gym. The Hung Up hitmaker and her film director husband Guy Ritchie bought the 10-bedroom Georgian house next door to their current home last June (07) with plans to knocking through the divide in the two buildings to turn it into one extra-large mansion. But the ambitious project was allegedly denied planning permission and the singer is now reported to have converted the spare building into her personal fitness centre to ensure her privacy. Madonna currently exercises at her personal trainer, James D'Silva's studio in St John's Wood, but her fitness sessions have become so routine crowds of fans have begun to form outside the gym to catch a glimpse of the star as she arrives.