It’s been one hell of a month for property-buying Harry Potter fans in London, who have had the opportunity to purchase a slice of the Potter franchise pie. First, we saw the original Privet Drive, home to the Dursleys and Harry’s Cupboard Under the Stairs, go on sale. Now the North London home of Hermione Granger, her muggle parents and Crookshanks is up for grabs. And you don’t need to be a genius witch to figure out that the house doesn’t come cheap.