The original structure was designed by Toronto architecture firm Gordon & Helliwell and completed in 1895.
[2] A fire in 1915 destroyed much of the building and was rebuilt (with plans from Burke, Horwood and White) less the south tower when it re-opened in 1917.
The building's interior consisted of Council chambers, a 905-seat auditorium, city hall offices, library, market stalls and jail.
[3] The Orillia Opera House has featured such artists as the Marx Brothers, Glenn Gould, Oscar Peterson, K.D.
Lang, Mickey Rooney, Dan Hill, Liona Boyd, Blue Rodeo, Gerry Dee, Ron James, Lighthouse, The Stampeders, David Clayton Thomas, Bruce Cockburn and Gordon Lightfoot.