Breaking into the exclusive Highgate property market in north London is notoriously difficult. But yesterday a homeless man apparently did the almost-impossible, managing to secure his very own slice of prime real estate on Hampstead Heath for free. Harry Hallowes, 70, says he has been given the title deeds to a piece of land on the edge of the heath on which he has been squatting for more than two decades. The 65ft by 131ft plot has been estimated to be worth up to £2 million. Because he lived there for more than the 12 years required by law, the Land Registry has declared him the legal owner. Is it time these laws were changed?