Description is provided by the architect. H&deM designed the master plan of Confluence for the Rhone riverside (ZAC II) between 2009 and 2011 and has been supervising the urban development since then. The project proposes 14 “îlots” of approximately 100 buildings mixing uses and typologies. Îlot A3 is the first “îlot” in the new Confluence district “Quartier du Marché” to be developed as a pioneer for the entire area. H&deM acted as “Architecte en Chef d’Îlot” for the translation of urban guidelines into architecture.

Ilot A3 consists on an open bloc of 8 buildings with housing, offices, and retail designed by 6 offices including AFAA, Tatiana Bilbao, Manuel Herz, Christian Kerez, H&deM and Michel Desvigne as the landscape architect. In the center of the bloc, there is a courtyard with a daycare. The introduction of 16 floor high towers in the master plan offers simultaneously the possibility to keep a relatively high density as well as having small-scale buildings of 3 stories. Thus, it provides a variety of urban scales within the same bloc.

The residential tower on Îlot A3 is designed by Herzog & de Meuron. The volume is a simple extrusion defined by rounded loggias in the corners. The curved mineral facade has single and repetitive square openings. Its appearance relates to the very structured and homogenous facades of the buildings in the old town of Lyon. As opposed to the curves of the concrete, windows and sunshades are combined in a polygonal metallic frame specifically developed for the project. Their position follows the rectilinear grid of the floorplan. The geometry of the metallic window frames offers the possibility to use the shading system when the tilting window is open.   [caption id="attachment_5263" align="alignnone" width="1800"] © Jonathan Letoublon[/caption] [caption id="attachment_5259" align="alignnone" width="2000"] © Maxime Delvaux[/caption] [caption id="attachment_5267" align="alignnone" width="1520"] © George Dupin[/caption]   [caption id="attachment_5268" align="alignnone" width="1500"] © George Dupin[/caption] [caption id="attachment_5257" align="alignnone" width="1760"] © Maxime Delvaux[/caption]  

Project Key Data

Project Name: IlotA3,Tour de logements Location: Lyon Confluence, Lyon, France Client: ICADE Promotion, France (Private Developer), and SPL,France (PublicDeveloper)

Herzog & de Meuron Project Team

Partners: Jacques Herzog, Pierre de Meuron, Christine Binswanger (Partner in Charge) Project Team: Christoph Röttinger (Associate, Project Director), Emmanuel Guilloux (Project Manager), Claire Gamet (Project Manager), Delphine Camus, Chloé Eckert, Shusuke Inoue, Sara Jimenez, Antoine Meinnel, Alexa Nürnberger (Associate), Romain Pequin

Planning

Acoustics: Synacoustique, Lyon, France Construction: Security Alpes Contrôle, Villeurbanne, France Cost Consultant: Iliade, Caluire et Cuire, France Design Consultant: Herzog & deMeuron, Basel, Switzerland Executive Architect: AFAA, Lyon, France, PSO Ingénieurie, Serrieres, France, ELAN, Limonest, France Fire Security / Code: Veritas, Paris, France Geotechnical Engineering: Fondaconseil, La Tour Salvagny, France MEP Engineering: Iliade Setam, Caluire et Cuire, France Photovoltaic Engineering: Transenergie, Écully, France Roads & Networks Engineering: Cap Vert, Lyon, France Structural Engineering: Batiserf, Fontaine, France, and Artelia, La Plaine Saint Denis, France Sustainability Consultant: Etamine, Vaulx en Velin, France

Consulting

Facade Engineering: EPPAG, Münchenstein, Switzerland

Contractors

Electrical: CNE, Vaulx en Velin, France General Contractor: Leon Grosse, BRON, France Pombing Ventilation: Patricola, Montany, France