A transformation of a 1970s building on the shore of Lake Zurich combines energy efficiency and functionality through modern, sustainable solutions
On the shore of Lake Zurich in German-speaking Switzerland, Bellerivestrasse 36 is a 1974 office building that has been renovated by C.F. Møller Architects. The project has transformed the existing structure into a highly efficient building both climatically and functionally, while seamlessly integrating it with its natural setting.
The design emphasizes horizontal lines with a new façade that both optimizes energy performance and opens the building to the external environment. Originally closed off and impermeable, the façade has been redesigned with large openings and integrated photovoltaic canopies, which play a key role in the building’s energy efficiency.
Projecting 1.8 m outward at an angle of 25 degrees, these canopies provide half of the building’s energy needs while reducing glare and solar heat gain, therefore eliminating the need for additional external shading.
Clad in aluminum with distinctive champagne tones, they visually connect to the interiors through their alignment with the ceiling finishes, creating a seamless flow between indoors and out.
Inspired by the natural surroundings, the color palette interprets a 1970s aesthetic through a contemporary lens to give the façade an elegant and dynamic character. This transformation gives the building a bright, welcoming presence, enhancing its strategic location on Lake Zurich and its dialogue with adjacent parkland.
Inside, the design team created a central atrium to act as the building’s social nucleus. Flooded with natural light, this open space connects the offices and rental units, promoting collaboration among employees and fostering a sense of belonging.
Besides enhancing user well-being, the atrium improves natural ventilation and interior lighting, therefore reducing reliance on artificial energy sources.
The interior design features a palette of natural materials, such as timber and stone, combined with white surfaces that give life to a warm, minimalist design.
The existing terraces have been transformed into full-fledged gardens, with plantings that harmonize with those in the nearby park. These outdoor spaces contribute to rainwater management, enhance biodiversity, and offer users places to relax in nature.
Additional solar panels are on the roof, with excess energy transferred to the adjacent building and to newly installed energy storage systems. The result is a building that melds functionality, design, and sustainability, earning it LEED Platinum and Minergie certifications.
As C.F. Møller Architects partner Thue Hasløv points out:
“Opting for redevelopment instead of demolition was both cost effective and eco-friendly. Retaining the structure and preserving its office spaces has produced long-term energy savings. For the community, the transparent new pavilion with its connection to nature enriches the urban fabric. It’s all about giving something back to the city – creating a building that serves its users and enhances its context.”
>>> Discover Lightwell in Puteaux, designed by Barthélémy Griño
Location: Zurich, Switzerland
Completion: 2024
Client and Main Contractor: Allreal Generalunternehmung
Architect: C.F. Møller Architects
Area: 27.000 m2
Consultants
Local Architects: Burckhardt Architektur
Landscape: Uniola
Services Engineering: PZM
Electrical: IBG Engineering
Façade: Emmer Pfenninger Partner
Structural: Gruner Wepf
Photography by Mark Hadden, courtesy of C.F. Møller Architects