Refurbishment Freestyle Hall Werdhölzli
The Freestyle Hall Werdhölzli, located at the north-eastern edge of Zurich-Altstetten, is being energetically renovated and programmatically further developed.
The good structural condition of the temporary building, completed in 2008, provides the basis for a careful upgrade with a focus on preservation of existing fabric, reuse, recyclability, reversibility of new components, and accessibility. These guiding principles strengthen the project’s environmental, economic, and social sustainability.
The facade refurbishment builds on the existing sandwich panels, which are retained and reused. By adding 10–14 cm of mineral wool insulation, an improved energy standard is achieved. A new EPDM membrane layer, fixed with button fasteners, enhances thermal performance without destroying the existing structure. Windows are replaced, and selected facade elements are dismantled and reused elsewhere, ensuring that 100% of the panels remain in circulation.
In addition, a large-scale, ground-based facade greening is introduced on three sides of the building. It provides natural shading and improves the microclimate. A flexible cable-supported climbing system and a continuous root zone allow for diverse planting schemes, supported by a rainwater harvesting system with a storage tank and drip irrigation.
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Dario Wohler
Zurich
The Freestyle Hall Werdhölzli, located at the north-eastern edge of Zurich-Altstetten, is being energetically renovated and programmatically further developed. The good structural condition of the temporary building, completed in 2008, provides the basis for a careful upgrade with a focus on preservation of existing fabric, reuse, recyclability, reversibility of new components, and accessibility. These guiding principles strengthen the project’s environmental, economic, and social sustainability. The facade refurbishment builds on the existing sandwich panels, which are retained and reused. By adding 10–14 cm of mineral wool insulation, an improved energy standard is achieved. A new EPDM membrane layer, fixed with button fasteners, enhances thermal performance without destroying the existing structure. Windows are replaced, and selected facade elements are dismantled and reused elsewhere, ensuring that 100% of the panels remain in circulation. In addition, a large-scale, ground-based facade greening is introduced on three sides of the building. It provides natural shading and improves the microclimate. A flexible cable-supported climbing system and a continuous root zone allow for diverse planting schemes, supported by a rainwater harvesting system with a storage tank and drip irrigation.
Der Entwurf des neuen Stadions integriert sich harmonisch in die umgebende Landschaft und Topografie. Die Gebäudegeometrie greift die charakteristische Flächigkeit des Sportparks und des Mauerparks auf und überführt sie in ein zeitgemäßes, barrierefreies Konzept. Der historische Kontext bleibt für die Nutzer erlebbar. Der zentrale Boulevard verbindet das Stadion mit den Sportpark-Gebäuden und schafft eine attraktive Begegnungs- und Aktivitätszone. Das asymmetrische Stadionvolumen öffnet sich zum Boulevard hin, während die Erschließung durch zwei Rampen entlang des Trümmerhügels eine uneingeschränkt inklusive Zugänglichkeit für alle Nutzer gewährleistet.