Now known as the Pavilion Atrium Bar, the Denton Lounge was officially opened by the Mayor of Worthing, H. W. Bradley on 31st July 1959. It was named after Alderman J. G. Denton who had been the town mayor from 1908 to 1910, and whose bequest to the town financed the building. His bequest also enabled the building of the Assembly Hall in 1935.
The design of the building was by J. Brandon-Jones, with some of the exterior decoration designs by Laurence Bradshaw. It was built by a Brighton-based builder, Messrs Rice & Sons Ltd, who managed to finish the building a week ahead of the agreed time scale.