Gaetano Dieni graduated in 1978 from the school of Architecture of the Polytechnic of Turin and opened all at once with some of his university fellows his office in Alessandria.
Some time after he continued his activity alone.

Giovanni Dieni graduated in 1990 from the school of Architecture of the Polytechnic of Milan and worked for some years as technical manager for an important building company in the field of public works. Since 1995 hes been working as an architect in Milan.

Since 2005 Gaetano Dieni and Giovanni Dieni have started their cooperation.


The study operates in the fields of architecture, civil engineering, territorial and urban planning.

The numerous projects of the office concern residential and public architecture, schools, productive plants and associate-charitable building.