The theatre was built on what had previously been the athletic field of the exclusive boys' school Upper Canada College near the corner of King and Simcoe streets.The construction of the Royal Alex was financed by a group of business leaders who sought to "put Toronto on the map" as a place of culture and refinement.The architect chosen by Mulock and his group was the young John McIntosh Lyle, born in Belfast, reared in Hamilton, Ontario, and educated at Yale University and Paris' École des Beaux-Arts.The interior featured an Italian marble lobby; Venetian mosaic floors; elaborately carved walnut and cherrywood stairs and railings; silk wallpapers; ornate, gilded plasterwork; and an enormous sounding-board mural ("Venus and Attendants Discover the Sleeping Adonis") by the popular Canadian painter Frederick S. Challener.Its first presentation was a pantomime "spectacle" titled "Top O'Th' World", starring Anna Laughlin, heading a cast of 65.The manager of the Alex, Lawrence "Lol" Solman, allied his theatre with the Syndicate's chief challengers, the Shubert brothers.For this impertinence, Solman later wrote, Abe Erlanger threatened to drive the Alex into bankruptcy and turn it into a stable for the horses of the carriage-trade patrons of the Princess.The neighbourhood surrounding the theatre also went into decline, becoming dominated by railway marshalling yards, warehouses and light industry that had moved to the area following the Great Toronto Fire of 1904.Ed Mirvish rarely after ventured into production, but used the theatre - as it had always been used - as a road house, booking in touring shows and pre-Broadway tryouts.The theatre's managers have been Lawrence Solman 1907-1931, William Breen 1933-1939, Ernest Rawley 1939-1963, Edwin De Rocher 1963-1969, Yale Simpson 1969-1989, Graham Hall 1989-1994, Ron Jacobson 1994–present.