Kurt Cobain’s childhood home in Aberdeen, Washington, has been officially added to the state’s Heritage Register, paving the way for it to be turned into a fully functioning museum from next year.

In an interview with Rolling Stone, the property’s current owner, Lee Bacon, revealed that he planned to return the house to its exact condition at the time Cobain and his family were still living there. With the help of Cobain’s sister, Kim, who was drafted in as a consultant, the house is around “90-95 percent” complete, with a number of personal possessions, including Kurt’s very own mattress and a number of his childhood toys, restored to their original settings.

Having lived at the address from 1968 to 1984, the new museum will commemorate the place where Cobain developed his musical ambitions and writing talents. Part of the plans involve the opening of a downtown space, twinned with Cobain’s former home, that will house memorabilia, photos from Nirvana’s heyday and artifacts from his childhood. Free to tour and now written into state legislature, the new museum is set to become a point of pilgrimage for years to come.