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Lassagne

Renovation, extension, and maintenance of three former buildings of the Lassagne middle school, with the aim of hosting the Jules Verne school complex, the Caluire Jeunes leisure center, and the AMC2 music school.

The project strikes a balance between reusing former school buildings and extending them, in order to completely rethink the site. This approach helps reduce the carbon footprint while also creating an oasis courtyard at the heart of the project. A key feature of the design, the courtyard brings together the two schoolyards, celebrating nature and coolness. It forms part of the ecological corridors that cross Caluire-et-Cuire from east to west, weaving connections between the lush vegetation of the Balmes de la Saône and the private parks and gardens of the Caluire urban fabric.

Clear access from the public space and the landscaped pedestrian path give the project a readable layout and anchor it within its residential context.

A place for learning, sharing, rest, and calm, the school is also a vibrant, dynamic, and inspiring environment. The spaces are designed to support both concentration and play, offering recreational and stimulating areas: their spatial qualities contribute to awakening the sensory perceptions of the youngest children. To meet the diverse uses and activities that take place in a school, the project allows for great adaptability of the spaces.

Client : City of Caluire-et-Cuire (Project Owner) & SPL OSER (Delegated Project Owner)

Location : Caluire-et-Cuire, France

Size : 5112 m²

Status : In Progress

Key points

  • Preservation of existing structures and landscape.
  • Low-carbon construction (reuse, timber framing, bio-based materials, etc).
  • Bioclimatic construction and consideration of summer comfort.
Download the project sheet
2 plans de l'école

A renovation that adapts to new uses

In this project, it is the voids (schoolyards and entrance sequences) that have structured the layout of the site.

Building C is complemented by an extension. In direct connection with the public space, it houses the AMC2 music school and the Caluire Jeunes association. It thus contributes to creating a new, structured and readable built frontage. The school complex, meanwhile, is located at the heart of the site within buildings C, E, and the extension of the latter. It is therefore protected from urban noise and activity. It is accessed via a landscaped, pedestrian, and secure pathway.

This organizational choice and functional distribution across the site led to the demolition of one of the original buildings, opening the project to the west and to the surrounding landscaped open space.

The renovated sections adopt an architectural vocabulary similar to that of the extensions, creating a coherent, welcoming, and attractive architectural landscape.

The project establishes a harmonious dialogue between the renovated sections and the extensions, and follows a particularly relevant approach to sustainability: maximizing reuse of existing structures, building as little as possible, and doing so in the most responsible way. In the end, 60% of the existing floor area is preserved and renovated. To combine this virtuous approach with user needs, each building and each courtyard has been designed to correspond to a specific functional unit.

Oasis courtyards’ to preserve nature.

The two schoolyards naturally find their place within the overall site layout, at the heart of the project. Special attention has been paid to preserving all remarkable existing trees, especially the pines, which are retained and complemented by new plantings. In these oasis courtyards, nature and coolness take center stage: permeable surfaces, vegetable gardens, play areas and equipment integrated into the landscape, rain gardens, and dense vegetation...

The project separates the spaces dedicated to preschool and elementary students.

This clear separation of student flows—between the “younger” and the “older” children—as well as the differentiation of entrances and schoolyards, is considered essential for the comfort and safety of young users: a secure access and a shared “school path” (the pedestrian lane) that preserves the site’s iconic pine trees. The landscaped pedestrian lane acts as a structural backbone for the project. It enables a functional distribution across the depth of the site without causing congestion or overlapping flows at the main entrance.

The landscaped pedestrian lane acts as a structural backbone for the project. It enables a functional distribution across the depth of the site without causing congestion or overlapping flows at the main forecourt.

Low-carbon construction

The first step toward a low-carbon project was to preserve two out of the three existing buildings.
The interventions are designed with a focus on user comfort (natural light, functionality, acoustics, thermal comfort) and a strong environmental ambition. To achieve high energy performance with a reduced carbon footprint, several strategic choices were made: a strong landscape vision with a strategy to reinforce existing ecological corridors, preservation of existing trees, creation of “oasis courtyards” acting as permeable cooling islands, and rainwater harvesting for irrigation.

The predominant use of wood :
Timber-framed façades, cladding, wood fiber suspended ceilings, interior finishes and joinery... The use of wood helps create warm atmospheres and reflects a strong environmental commitment, both in new construction and in renovation.

A bioclimatic approach :
The bioclimatic approach focuses on reducing energy needs through solar shading, potential natural ventilation, and insulation. In parallel, the project relies on “clean energy” sources, such as a rooftop photovoltaic power station and connection to the urban heating network. Additionally, one of the buildings features an intensive green roof (with 40 cm of fertile substrate), integrated into the overall landscape strategy.

Overall, the reuse strategy implemented in the project results in a waste reduction of 24,000 tonnes and a carbon savings of nearly 100 tonnes.

Team

Patriarche (Architecture, Ingénierie TCE)
Autumn | Patriarche (General Contractor)
Partners:
Engie Solutions (Maintenance and HVAC works)
Mobius (Reuse)
EODD Ingénieurs Conseils (Energy and environmental consulting)
Euclid Ingénierie (Restoration)
ABC Décibel (Acoustics)
The Good Factory paysage & co (Landscape)

Credits

3D : © Virtual Building

 

 

Program

Education