Architects:COSA Colboc Sachet architectures

Area :14000 m²

Year :2018

Photographs :Camille Gharbi

Manufacturers :  Technal, Alucobond, Laudescher, OberSurfaces, ROCAMATTechnal

Lead Architects :COSA Colboc Sachet architectures

Urban Planner :Ateliers Lion Associés

Client : Les Nouveaux Constructeurs

Environmental Assistant To The Contracting Authority : Etamine

Planning Authority : EPAMARNE

Operational Project Management : Builders & Partners

Structural Engineering, Roads And Utility Services : RBS

Fluids Engineering : JLL Ingénierie

Facade : CEEF

Acoustics : Jean-Paul Lamoureux

Kitchen Designer : SPOOMS

Economics : EXECO

Space Car Park : 320

Outdoor Area : 5500.0 m2

Environmental Assistant To Contracting Authority : Etamine

Operational Project Management : Builders & Partners

Fluids Engineering : JLL Ingénierie

Kitchen Designer : SPOOMS

City : Champs-sur-Marne

Country : France

The architecture of a company’s headquarters contributes to its identity. Casden is a cooperative bank, established immediately after the war by teachers who wanted to pool their savings in order to help a colleague’s son to buy a home. Its identity is one of sharing and solidarity. Its architecture should reflect those values while at the same time conveying the solidity of a banking institution. It should be rigorous, uncomplicated, straightforward, domestic or even gentle, a welcoming place for clients unfamiliar with the architectural codes of international finance.

The Casden Banque Populaire headquarters building folds to form a large forecourt. This leads into a large double-height atrium, opening visually into the landscaped heart of the block, with its hundred-year-old trees. The program is classical in its architectural composition, divided into base, Piano Nobile and attic.

On the first two storeys, the base accommodates the amenities for staff, clients and visitors, helping to bring life to the streets. The frame of the base is broader, with thicker columns, and its relation to the slope embeds it into the public space.

The office floors, the heart of the building’s life, are symbolically located on a four-level Piano Nobile. Its facade is indented with balconies, which suggest a certain architectural domesticity. It is enlivened by the main stairways and elevators, places of movement and meetings between colleagues.

The board offices, extending into a hanging garden, form a two-level attic. The boardroom is on the top floor, in the prow of the building, bridging the space between forecourt and park. The materials are natural: wood brings warmth to the communal spaces, whereas the pale stone typical of the region, inlaid with bronze toned aluminum, softens the institutional nature of the building.

The architectural design consists of a simple and repetitive load-bearing frame, which gives the building flexibility in its internal partitioning. The different programs are defined through variations in proportion, which express their strategic positioning in the urban context and the physical and symbolic links that connect them.

These simple measures produce a timeless institutional architecture tempered by the morphology, the organization and the materiality of the building. Casden Banque Populaire is a cooperative bank and its architecture achieves the fragile balance between classicism and simplicity.

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