School Wiesental in Baar/

PENZISBETTINI Architekten

Switzerland

Project Details

Location

Location(City/Country):

Baar / Switzerland
Tipology

Tipology:

Educational
Year

Year (Design/Construction):

- / 2025
Area

Area (Net/Gross):

- / -
Operational Carbon emissions

Operational Carbon emissions (B6) kgCO2e/m2/y:

-
Embodied Carbon emissions

Embodied Carbon emissions (A1-A3) kgCO2e/m2:

-
  • Minergie‑A ECO certification, ensuring very low energy demand and meeting strict ecological and health standards.
  • A photovoltaic system producing more energy than the building consumes, achieving a positive operational energy balance.
  • Hybrid sustainable structure: a timber superstructure combined with recycled‑concrete elements in contact with the ground.
  • Compact building form that minimises heat loss and improves the efficiency of the building envelope.
  • Clear separation of load‑bearing and non‑load‑bearing elements, enabling flexible layouts and extending the building’s lifecycle.

The orthogonal layout, open towards its surroundings, spatially connects the school complex with the natural landscape, creates a gradual transition towards the town, and forms a campus-like spatial structure appropriate for a primary school. The “built centre” avoids the urban vocabulary of a plaza and instead establishes clear orientation within the Cartesian layout: its transparency provides visual clarity, while the canopies create identifiable reference points for the children.

The first building – House East – is the largest building on the new campus, with five storeys and a façade length of 100 m. On the top floor, five separately accessed clusters, each containing four classrooms, are arranged and connected via centrally located learning islands. Skylights and the rising roof geometry provide natural daylight deep into the building. The specialised classrooms are located on the floor below, allowing for short circulation routes. On the ground floor, school services are accessible to all pupils as well as external users. At the heart of the building lies the triple sports hall, which is used both for school activities and by local clubs.

The triple sports hall, measuring 35 m in width and 50 m in length, is spanned by a two-storey mega-truss. In the upper floors, the timber construction of the classrooms interweaves with the truss structure, making both the technical and architectural concept legible throughout the building.

Double-height spaces with galleries along the stairwell define “addresses” for each cluster and bring daylight into the level below. In the sports hall, the three-storey wall bars form a permeable membrane, creating visual connections to the adjacent rooms and the surrounding landscape.

The Minergie-A label with ECO certification makes the new building a flagship project for the Energy City of Baar. The photovoltaic system generates more energy than the school consumes, contributing positively to the building’s overall energy balance. Subterranean components made of recycled concrete and the use of timber above ground are sustainable and resource-efficient, keeping the proportion of embodied energy low. The consistent separation of load-bearing and non-load-bearing elements allows for flexible spatial layouts and makes it easier to replace components with different life cycles. The compact building form ensures an efficient ratio between floor area and building envelope, resulting in low heating energy demand. Enlarged frames of the façade elements, together with the more closed end façades, create a balanced proportion between glazed and opaque surfaces.

The spatial structure and identity of the school are defined by its structural system: the prefabricated beam-and-column construction and the earth-contact components made of recycled concrete fulfil more than just structural functions. The structural grid is also expressed in the façade. Plinth elements act as seating benches both inside and outside, making the façade space tangible and usable.

 

  • Architect: PENZISBETTINI Architekten
  • Photography: Federico Farinatti

 

 

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