In 1882 Nénot began his career, during which he was appointed architect of the Sorbonne, which remains his great work, as well as designing other university buildings in Paris and a number of private residential and commercial buildings. In 1895 he was elected department chair for architecture in the Académie des beaux-arts. His last position was Director General for the architecture of the Palace of Nations in Geneva, where he died in an accident.
1921: building for Dreyfus, 410 Av. Alem, Buenos Aires
1922–1928: Place Carnegie de Fargniers, now commune de Tergnier (Aisne) with Paul Bigot (an ensemble comprising la mairie, un bureau de poste, un poste de police, une pompe, une halle, une salle d' assemblée, le foyer Carnegie, un établissement de bains, des écoles, des espaces verts et de jeux) (inscrit MH)
1925: monument to the war dead 1914–1918 in the Gassin cemetery (Var)
1930: Le Paladium bd du Tsarévitch at Nice with Edmond Labbé