Palais Royale
This building stands at the eastern end of the former Sunnyside Amusement Park. It was opened in 1922 as both a dance hall and Walter Dean's boat factory. Remodelled in 1924 and 1928, it housed various nightclubs and restaurants until 1932 when it was purchased by two Sunnyside concessionnaires, Bill Cuthbert and George Deller. It became one of the most famous of Toronto's dance halls attracting the big band sounds of Tommy and Jimmy Dorsey, Count Basie and Bert Niosi. The Palais Royale, with the bathing pavilion escaped the demolition of Sunnyside in 1955 and survives as a dance hall, leased from the City of Toronto, by the Polish National Union.
Plaque via Alan L. Brown's site Toronto Plaques. Full page here.