Two projected alternative sites for a new house for the Paris Opera, the first overlapping the site of Salle Le Peletier, the company's theatre at that time, and the second on the Boulevard des Capucines, where the Palais Garnier would soon be built. The plan also shows two proposed alternative routes for a broad imperial avenue running north from the Louvre to the new opera house. The second, at first referred to as the Avenue Napoléon, corresponds to the present-day Avenue de l'Opéra.