12 Grimmauld Place
Harry Potter and the Order of the Phoenix as for the Order of the Phoenix to hideout and have meetings. Harry Potter attains ownership of the house after his godfather, Sirius Black died during the battle at the Ministry of Magic. In Harry Potter and the Deathly Hallows Harry, Hermione and Ron use the house to stay safe and keep hidden from Voldemort and the Death Eaters. There is a house elf inside, known as Kreacher, he has worked in the House of Black since Sirius moved there as a child.