Projects

Hinterzweien secondary school in Muttenz. A sustainable school building in Switzerland.

Builder

Canton Basel-Country

Completion

2022

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In the competition, the task was to design a school extension that would optimally meet the operational needs and requirements of a contemporary school building. Exemplary planning in terms of sustainability was a prerequisite. A total of 27 classes and one sports class were to be brought together.

Project data

The idea

The design provides for an extension of the existing ensemble by two point buildings in the south. This positioning creates a protected inner courtyard situation. The new buildings form an appropriate shielding of the break yard from the surrounding residential development. In accordance with the existing linking of the individual school buildings by means of canopies, these are supplemented in order to create an optimal connection of the two new building parts to the ensemble.

For the two blocks, sports hall and school building, the same materials are pursued in different construction methods. Thus, the sports hall is planned as a timber structure with a lateral ancillary and additional room wing in reinforced concrete construction, while the three-story school building is a combination of reinforced concrete and timber-concrete composite. The ceilings in the school building are planned in wood-concrete composite construction. Here, the materials wood and concrete are combined to obtain an efficient and economical construction.

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The sports hall is accessible at the level of the playground. The changing rooms for the student body are located here. The divisible double sports hall is located in the basement.

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A generous staircase in the center of the building visually connects all floors and their uses and ensures a high interior quality. Seating steps provide lounging areas during breaks and can function as seating for events in the foyer and the connectable music or multi-purpose rooms.

Adapted to the existing roof forms, the new school and the sports hall are designed with flat roofs.

In order to conserve natural resources as far as possible, building materials and structures with the lowest possible environmental impact and high durability are planned. In some areas, for example, wood-concrete composite floors and, as far as statically possible, recycled concrete or blast-furnace cement are used.