Date:
2025
Location:
Zollikerberg, CHBühl 27 Zollikerberg
A generous attic apartment is to be extended with an additional living area. The dominant roof slopes create an excessive, unused, and dark central height within the apartment—an interior volume with few qualities that is now to be enhanced.
The project proposes the insertion of a gallery, spanned by a timber cassette ceiling that bridges the central rooms and projects into the large living and dining space. Access is provided by an integrated staircase, suspended from the gallery itself, so that no additional loads are transferred to the ceiling below.
The rear rooms are newly reconfigured, providing both visual and acoustic separation from the main living area and thereby maximizing privacy within the smallest of spaces. On the gallery, an additional room is created at the entrance level, alongside a library.
The project draws upon the existing structure, carving out a new spatial order from within. The strategy of reuse is directed at the given fabric—transforming the existing volume with precise interventions into a renewed whole.
Client: Private
Planning: Rossetti+Wyss Architekten, Ingenieurbüro Hansruedi Schlatter, Bakus Bauphysik & Akustik GmbH
Photos: © Jürg Zimmermann

