In October the work on knocking down the housing complex «Himmelrich 3» in Lucerne began. A new residential and commercial complex will be built there by 2020. On commission by the Allgemeine Baugenossenschaft Lucerne (abl), we realised an extraordinary installation to inform the neighbours about the construction progress. We used the construction fence as a timeline. It begins in the founding years of the abl and extends to the completion of the housing complex. A small house that can be visited contains an exhibition that will be changed every six months. The house can also be used for other events and offers a platform for meeting and interaction.