Caroline Clarke, Jon Spiers and Prof Hans Stauss cut the ribbon to celebrate taking control of the Pears Building at the Royal Free in Hampstead - Credit: Royal Free Charity The Royal Free Charity has finally got the keys to its flagship new Pears Building. The £60m building in the grounds of the Royal Free Hospital itself will become the charity's new home – and it will also host the UCL Institute of Immunity and Transplantation (IIT). The exterior of the Pears Building on the Royal Free's Hampstead site - Credit: Janie Airey Hopkins The building will be able to accommodate up to 200 researchers looking for cures and new treatments for health issues including type 1 diabetes, cancer and organ rejection after a transplant.