The 200 seat Library Theatre was built between the School of Music and the reference library block in 1983–86. The theatre was a design and build scheme by Henry Boot Projects. Although the design was in Madin's original plans, Madin did not approve of the design and build method and subsequently had no involvement in the building. Chamberlain House and the Copthorne Hotel were built to the west of the library in 1985–87 by Leonard J. Multon & Partners with wedge shaped ends.