sentences:  In 1939 a new Art Deco style Council Chamber was included as part of an addition on the Brighton Road side, while in 1971 a modernist addition was made to the Carlisle Street side.In the early hours of Sunday 7 April 1991, fire gutted the hall itself, and resulting in loss of the internal decoration, the organ, and destruction or severe damage to the many works of art that lined the halls.Arson was suspected.