The Les Violettes school has been extended: In Mareil-Marly, a suburb of Paris, the architecture firm HEMAA has realized a remarkable school project in collaboration with Hesters Oyon: the expansion of the Les Violettes school complex. The project includes a new daycare center, a six-classroom extension to the elementary school and a leisure center. The school, which was built on a 2,000 square meter site, blends harmoniously into the surrounding landscape and uses the existing tree structure as a design element.
The building ensemble was designed to take up the special topography of the site. The architecture preserves and enhances the natural surroundings: transparent façades and a choice of wood and glass materials ensure a close interlocking of interior and exterior spaces. The positioning of the new buildings in the western part of the site also allows for optimal use of the open spaces as protected play areas.
The extension of the school was carried out with a clear focus on functionality and aesthetics. The buildings were deliberately fragmented and connected by two light-flooded, two-storey halls. While one of these halls marks the entrance area of the elementary school, the other acts as a link between the kindergarten and the covered play area. Thanks to extensive glazing, daylight is directed deep into the interior of the building.
In order to minimize the construction time and not interfere with ongoing school operations, the architects opted for a prefabricated timber construction method from French production. This not only reduced noise during the construction phase, but also the project’s CO2 footprint. The insulation is made of wood wool and natural materials characterize the entire interior concept. Visible wooden structures and untreated concrete walls create an authentic, warm atmosphere.
The choice of materials plays a central role in the architectural concept: while the first floor is clad with vertical wooden slats, the upper floor has a façade made of reflective aluminum. This reflective cladding picks up on the colors of the surroundings and changes the appearance of the school depending on the weather and season.
Another key concern of the architects was to promote an open and inspiring learning atmosphere. In the kindergarten, all classrooms are located on the first floor with direct access to the outside area – a wish expressed by the teachers in order to create the closest possible connection between learning and play areas. In the elementary school, generous glazing between classrooms and corridors provides natural lighting and transparency.
Another sustainable element is rainwater management: instead of complex drainage systems, the water is directed specifically into areas that can seep away, particularly around the existing trees. This preserves the natural water cycle while improving the microclimate at the same time.
The Les Violettes school project is an example of how contemporary architecture and sustainable building can go hand in hand. The combination of timber construction, well thought-out spatial organization and sensitive integration into nature creates an environment that is not only functional but also inspiring. The school thus becomes a place to learn, play and grow – surrounded by the trees of Mareil-Marly.
Read also: The Sint Lucas School in Antwerp designed by Atelier Kempe Thill.












