City and Metropolitan Hall,  and Espace Napoléon Museum lry_pers_parvis_couverture

La Roche-sur-Yon

City and Metropolitan Hall, and Espace Napoléon Museum

In the centre of the city founded by Napoleon, a composite site accommodates the new town hall and museum. Serving citizens and the dynamics of the city centre, site regeneration is proposed. A glass-roofed atrium accommodates the new functions while the museum tower is located within the nave of the former courthouse.

City and Metropolitan Hall,  and Espace Napoléon Museum pln_masse_500

On Place Napoléon, the geographical centre of La Roche-sur-Yon, the operation is wedged between the former courthouse with its remarkable neoclassical portico and the art deco post office flanked by an 1980s extension - a marked stylistic difference which the new infill building manages to reconcile.

City and Metropolitan Hall,  and Espace Napoléon Museum lry_210621_aps2_arc_hdva_l_pln_h-rdc_100
 Ground Floor Plan
City and Metropolitan Hall,  and Espace Napoléon Museum lry_210621_aps2_arc_hdva_l_pln_h-r-1_100-copie
First Floor Plan

With concrete trumeaux, the new facades adopt a sober, very classic contemporary style which expresses the institutional character of the building.

City and Metropolitan Hall,  and Espace Napoléon Museum lry_210621_aps2_arc_hdva_ele_rue-allende-rue-clemenceau_100-copie

A delicate glass volume caps the complex. A link between eras and functions, it undulates and becomes more discreet as it approaches the listed facade of the courthouse.

City and Metropolitan Hall,  and Espace Napoléon Museum lry_pers_04
City and Metropolitan Hall,  and Espace Napoléon Museum lry_pers_03
 The atrium embodies public speech. From a rostrum sunk into the pediment which reveals the apse of the former courthouse, elected officials can address citizens.

Creating transparency between Rue Clémenceau and Rue Allende, the atrium accommodates all functions; wedding hall and auditorium on the ground floor with offices on the upper floors. The glazed roof cap is detailed with lightness, located on the rear pediment of the courthouse to highlight it.

City and Metropolitan Hall,  and Espace Napoléon Museum dersu_madeleine
Madeleine d’Ersu, PROJECT ARCHITECT

« We wanted to design a modest building. With its timber frame, the glass roof is a sober structure both ecologically and economically. We also identified in La Roche-sur-Yon several companies specialised in low-carbon concrete. We wanted to support local skills. »

Like all communities, La Roche-sur-Yon had to deal with the Covid-19 crisis. The project will be undertaken in two phases. Initially the town and regional hall, then the museum - a schedule which allows to spread investment without altering the project.

City and Metropolitan Hall,  and Espace Napoléon Museum lry_pers_05
City and Metropolitan Hall,  and Espace Napoléon Museum lry_pers_02
Originally designed by the engineer Claude-Raphaël Duvivier, the former courthouse has regained its initial appearance. Setback, the contemporary elevation is almost imperceptible from Place Napoléon.

Status

City and Metropolitan Hall – Completion due 2025 Museum – Completion due 2028

Location

La Roche-sur-Yon (85)

Client

City of La Roche-sur-Yon

Programme

Rehabilitation and reconstruction of the City and Metropolitan Hall (4,700 m²) and the new Espace Napoléon museum (4,000 m²)

Area

4 700 m² + 4 000 m²

Cost

17 M€

Lead consultant

Richez_Associés

Design team

Richez_Associés + Chartier Corbasson architectes + dUCKS scéno + Area + Novam ingénierie + Gantha

Lab

Each project is an opportunity to test, improve and intergrate new practices. The 26 Lab team leaders support our teams to implement this practical innovation approach.