This book documents the exemplary planning and implementation of renovation work led by Jaccaud + Associés in the Cité du Lignon, Vernier near Geneva between 2010 and 2024. The Cité, which was built between 1963 and 1971 by Georges Addor, Dominique Julliard, Jacques Bolliger and Louis Payot, is one of the largest housing estates in Switzerland.