 Lyle was responsible for Toronto's Royal Alexandra Theatre, the of the Toronto Public Library and Union Station (Toronto), amongst many other well-known buildings in the region.Central is the only church structure that Lyle designed.Lyle's design for the building was influenced by the Church of St. Martin-in-the-Fields in London and the Congregational Church of Naugatuck, Connecticut, and is unusual in having a flat roof, thereby resembling more the public buildings favoured by the École des Beaux-Arts than the traditional European church.