Opéra des Nations, Geneva

The Opéra des Nations – an all-wood temporary building – replaces the Geneva Grand Théâtre during its renovation from 2016 to 2018. The former Théâtre éphémère of the Comédie-Française has been transformed and adapted to opera, ballets and recitals: enlargement of the hall by 8 m, increasing the seat count to 1 118; addition of an orchestra pit; acoustic optimization with reflectors installed above the orchestra pit and on the sidewalls of the hall.

Opéra des NationsView of the sloping parterre and the wood roof structure. The central part of the ceiling structure was added in order to enlarge the hall by 8 m and increase the seating capacity to 1 118.
© Kahle Acoustics
Opéra des NationsView of the sloping parterre and the wood roof structure. The central part of the ceiling structure was added in order to enlarge the hall by 8 m and increase the seating capacity to 1 118.
© Kahle Acoustics
Opéra des NationsThe acoustic reflectors on the sidewalls have a specific orientation in order to achieve homogeneous lateral reflection's coverage of all seats.
© Kahle Acoustics
Opéra des NationsSidewall acoustic reflectors with specific orientation for enhancing lateral sound.
© Kahle Acoustics
Opéra des NationsView from a side of the orientation given to each sidewall acoustic reflector.
© Kahle Acoustics
Opéra des NationsThe last row of seats is at a distance of less than 30m from the stage. On the left, the sidewall acoustic reflectors, optimized for a homogeneous coverage of all seats with lateral reflections.
© Kahle Acoustics
Opéra des NationsThe 1 118-seat hall as seen from the stage during setup.
© Brodbeck-Roulet Architectes Associés
Opéra des NationsView on the orchestra pit and the stage.
© Kahle Acoustics
Opéra des NationsAcoustic reflectors placed above the orchestra pit to enhance communication between the musicians and improve the projection of sound for the audience.
© Kahle Acoustics
Opéra des NationsPodium installed in the orchestra pit during a harp recital rehearsal.
© Kahle Acoustics
Opéra des NationsOpening night at the Opera des Nations with Handel's Alcina.
© Kahle Acoustics
Information Sheet

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Location   Geneva, Switzerland.

Project Cost   11 million CHF (approx. 10 million €).

Time Frame   Design: 2014. Construction: 2015. Opening: February 2016.

Owner   Fondation du Grand Théâtre de Genève.

Architect(s)   Brodbeck-Roulet Architectes Associés, Switzerland.

Seat Count   The former Théâtre éphémère of the Comédie-Française has been enlarged by 8 m, increasing the seat count to 1 118 seats, and an orchestra pit for 70 musicians has been added. Dressing rooms and technical facilities have been augmented. Total area: 2 800 m².

Uses   The Opéra des Nations hosts the Geneva Grand Théâtre programme: operas, ballets and recitals.

Services   Comprehensive acoustic consulting services including acoustic concept, design and construction supervision.

Team   Eckhard Kahle, Juan Óscar García Gómez, Kahle Acoustics.

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