1888 Café Au grand Neptune (quai d'Auteuil, 16th arrondissement de Paris).
1889 Pavilion of Electricity at the 1889 World's Fair in Paris.
1890 Construction of a small dwelling in Billancourt (Monsieur Lecolle, owner)
1891 Hôtel Roszé (rue Boileau, 16th arrondissement of Paris)
1894 Hôtel Jassedé (rue Chardon-Lagache), Hôtel Delfau (rue Molitor), and the funerary chapel of Devos-Logie and Mirand-Devos in the cimetière des Gonards at Versailles. Guimard first meets Belgian Art Nouveau architect Paul Hankar.
1895 Atelier Carpeaux (boulevard Exelmans, Paris), and the École du Sacré Cœur. First meets Belgian Art Nouveau architect Victor Horta. Beginning of construction on the Castel Béranger (rue La-Fontaine, Paris).
1896 La Hublotière au Vésinet.[20]
1897 Guimard moves into an apartment building. Coilliot House.
1898 Castel Béranger which is called "deranged" by contemporaries.