Hill Court Manor. On 25 July 1953 the school's Combined Cadet Force armoury was raided by the Irish Republican Army (1922–69), making off with 8 Bren guns, 12 Sten guns, an anti-tank gun, a mortar and 109 rifles. Their van was stopped by a police patrol and Cathal Goulding, Sean Stephenson, later known as Seán Mac Stíofáin and Manus Canning each received 8 years in prison. Major building works took place for the 400th anniversary celebrations in 1964, when the Queen Mother laid the foundation stone for the then new Music School, subsequently opened by Felsted governor Lord Butler of Saffron Walden, (formerly Rab Butler). In 2008 this building was replaced by a larger new building which was opened in 2009 by Dame Evelyn Glennie. The Princess Royal opened the new Lord Riche Hall in 1989. Girls were taken into the Sixth Form in 1970, and into the whole school in 1993. 21st century The success of taking drama productions every two years to perform in American high schools from 2000 onwards, led to the school being invited in 2008 by the U.S. authorities to put on a production of Stephen Sondheim's A Funny Thing Happened on the Way to the Forum at Bedford Hills Correctional Facility for Women. The audience consisted of life prisoners and received international news coverage. The success of this venture led to three further productions in the Correctional Facility: Joseph and the Amazing Technicolor Dreamcoat (2010), The Secret Garden (2012) and Cabaret (2014). In July 2012 part of the school was devastated by fire after a blaze broke out in the roof and first floor of Follyfield House, one of the girls' boarding houses. The school term had ended but about 25 students and staff from a summer school were on site and evacuated. Nobody was injured. The school reopened as normal in September, with a new, temporary house situated next to the Lord Riche Hall. Soon after, an all new state-of-the-art boarding house was built in a different location, nearer to Gepp's & Deacon's houses, and opened as planned in September 2014. On 6 May 2014, the school was visited by reigning monarch Queen Elizabeth II to mark the 450th anniversary of Felsted School. She unveiled plaques for the visit as well as officially opening the newly constructed Follyfield House. Fees in 2020/2021 range from £24,495 per year for a day pupil to £37,485