He is notable for being one of the architects contributing to the design of the world-famous Eiffel Tower, built for the 1889 Universal Exposition in Paris, France.

His father Charles Sauvestre was a writer, socialist, activist and teacher and his mother was a housewife.

[2] Sauvestre contributed to the design of the Eiffel Tower, adding the decorative arches to the base, a glass pavilion to the first level and the cupola at the top.

He received the support of Gustave Eiffel who bought the rights to the patent on the design which he had filed together with Maurice Koechlin and Émile Nouguier.

[3][4] He was also the head of the Architecture department Compagnie des Etablissements Eiffel[5] [6]