The design unfolds along a central axis that is fundamentally inscribed into the DNA of the perimeter block development by Chiodera Tschudy. The 5.70-meter-high barrel vault, stretching from the large-scale, column-flanked arched gateway on Rämistrasse deep into the block structure, once guided visitors into the formerly secluded garden courtyard and ultimately toward the graceful central building of the historic theatre.
In the competition proposal, this reactivated archway opens into a spatially symmetrical and generously glazed vestibule, equipped with inviting natural stone benches that encourage visitors to linger while maintaining a direct relationship to the theatre shop. In the area of the symmetrically arranged staircases, the passage narrows and finally leads into the theatre foyer, which unfolds transversely in space. Six columns and twelve bays structure this two-storey grand hall, into which a precisely positioned atrium measuring 8.00 × 9.30 meters is inserted as a continuation of the axis. This atrium extends upward into the ceiling field as a large skylight fitted with a filter layer for diffused daylight.
The foyer is enlarged through the minimal displacement of the auditorium’s rear wall by 2.40 meters—an intervention that constitutes a major improvement to the sightlines within the theatre hall. Along this slightly shifted rear wall, the foyer staircase ascends with remarkable spatial clarity into the upper foyer levels. Rising from a base of three steps, it divides symmetrically into two diverging flights. Typologically, this element originally introduced by the architects Pfleghard and Haefeli during the 1926 renovation defines not only the entire foyer but also the connection between foyer and auditorium.
In the project proposal, this identity-forming and spatially defining element of the overall composition is preserved and reinstalled as a spolia in order to accommodate the displacement of the auditorium wall. The central axis continues sequentially through adjoining rooms and subspaces into the theatre hall, the stage area, and ultimately culminates in the stage tower.
The theatre auditorium by Pfleghard and Haefeli, still preserved today in an almost original condition, is historically regarded as a place of resistance. With its streamlined design, which was far ahead of its time, it also represents an architecturally significant testimony to its era. The proposal therefore seeks to upgrade and carry it into the future through technically precise and minimal interventions.









