The Diacosmie

Vue de l'intérieur de la diacosmie

The Diacosmie takes its name from the Greek word "diakosmos" meaning "décor", and was inaugurated in 18 June 1987.

As the production centre for Nice's opera house, the Diacosmie is a single building encompassing the research, construction, production, storage and rehearsal spaces inherent to a leading contemporary theatre.


Creations et reserves


Vue de la construciton d'un décor d'opéra dans l'atelier de la diacosmie

Two workshops measuring 40m x 40m allow set design for the operas and choreographic pieces to be rolled out from initial ideas to construction, all in the very best conditions. Located one above the other, these spaces are equipped with high performance machines, cutting-edge tools and an automatic vacuum system for sawdust and shavings.

On every floor, annex workshops are linked to these spaces: on the ground floor are the joinery and ironwork facilities, on the upper floor are the carpentry, sculpture and upholstery units and painting laboratory known as 'the Sorbonne'.
On the ground floor, the manufacturing workshop has a ceiling height of 7.5 metres which allows the wooden framework iron structures to be assembled, while the painting workshop, boasting the same surface area and a 5m ceiling height, is used to paint large backdrops.

The wooden floorboards ensure the canvases to be painted are easily attached to the floor. A network of footbridges link the workshops and provide an overall view of the work in progress. Spiral staircases connect the two floors. There are no pillars to block the overall view. The glass wall provides natural lighting.

The costumes

Atelier de couture de la diacosmie

The Diacosmie is also home to 130m² construction workshops in which the performances that will later be offered to the audiences take life.

The first space is located near the rehearsal stages and is where costumes are cut and fitted, and also handles adjustments made to costumes from previous performances.

On the top floor, the second space is given over to the making of new costumes. Here, a number of machines busily stitch, sew, hem and button new garments. A resident milliner occupies this space, using canvas and feathers to whip up headdresses, hats and tiaras. Trimmings are kept here in large custom-designed drawers. Further up, beyond a maze of doors and corridors, an accessories workshop, laundry, wig-making workshop and its reserve are the final links in the chain.


Stock des costumes à la diacosmie

An epic corridor measuring 80m long, 5m wide and 15m high cuts through the building, zig-zagging its way between the various construction workshops, rehearsal stages and storage areas scattered throughout the 16 honeycombed cells (800 m2) located to the side of the corridor.

A water-tight, pressurised reserve of 1600m2, designed to keep dust at bay, is equipped to store 10,000 costumes.
Finally, the accessories workshops, stretching over a surface area of 300m2, are fitted with shelves and stalls in which weapons, ornaments, knick-knacks, crockery, furniture and all other props used in performances, are stored.

Rehearsal spaces

The Théâtre de l'Opéra is where audience members are hosted. Spaces therefore needed to be created for rehearsals, in order to free the  opera house's stage up for the performances themselves.

The stages

Two platforms were created as copies of the opera stage (288m2) with its 4% incline, and the Salle Apollon d'Acropolis stage (1,080m2), enabling artists to rehearse in a true-to-life setting and in conditions that are as close as possible to actual performance conditions. The acoustics and architecture of the larger room allow recordings to be made when required.

The choir room

The choirs rehearse in their very own 270m2 studio.

The orchestra rehearsal room

Salle de répétition de l'orcherstre à la diacosmie

In the orchestra's study room (410m2 with a capacity of 200), extra tiered seating has been set up to accommodate several choirs for joint rehearsals. This room benefits from adjustable acoustics that harmonise musical work and the space itself.

In addition to these spaces, a number of studios of varying sizes are all equipped with pianos and are open to artists wishing to work alone or in small groups.
The room reserved for the chamber orchestra (40m2) can comfortably accommodate around fifteen musicians.

The ballet corps studio

The dance studio (330m2) is equipped with mirrored walls, bars and a floating floor.


Nice la Plaine
8 avenue Claude DEBUSSY
06200 NICE
Tél. 04 92 293 293