[2] It was built on the site of the former Westminster Theatre, which was damaged by a fire in 2002 and subsequently demolished.

[4] Described as "the first newly built theatre complex in central London for 30 years",[2] the building was designed by Foster Wilson Architects.

[5] The theatre began its debut season in September 2012 with the London premiere of Sandi Toksvig's Bully Boy.

[1] After its acquisition by Really Useful Theatres Group, Paul Taylor Mills was appointed as the new artistic director, with a programme intended to develop new musicals.

In May 2021, Lloyd Webber announced he was putting the theatre up for sale, calling the decision "heart-wrenching" and adding that he hoped "the future owners will love it as much as I have.