Born in Sondrio (Italy) in 1900, he died in Rapallo in 1981.

After getting an architecture degree at the Politecnico di in 1923, he worked with Gio Ponti , Pietro Chiesa , Giovanni Martelli and Paolo Venini ; together with them he established "Il labirinto", a movement to promote modern decorative arts. He was a full professor in the Faculty of Architecture in Milan from 1930 to 1954.
Tommaso has written for the magazine "Domus" and took over from Napoleone Martinuzzi as Venini & C. director from 1932 to 1933.