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General view
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South facade view
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Massive stone ground floor
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Movable shutters
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View on a distribution axis
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Site plan
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Ground floor plan
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Common floor plan
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West elevation
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Cross section
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Isometric view
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Structural concept
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Office Building for Isere county
PerraudinArchitecte. Voiron, France
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Name of work in English
Office Building for Isere county
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Name of work in original language
Maison du Conseil général de l'Isère
Prize year
EUmies Awards 2017
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Work Location
Voiron, France
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Studio
PerraudinArchitecte
EUmies Awards 2017 Nominees
Description: Office building built with local resources of wood and massive stone and using the very high know-how of local companies: carpenter and stonecutter.
Achievement : Sobriety, compactness, luminosity, noble and healthy materials, gray energy saving, low maintenance, low cost
Collaborators
Structural engineering: Anglade Structure Bois, CEH; Engineering: THERMIBEL; Others: GEC Rhône-Alpes; Environmental: PENICAUD Hubert
Program
Office
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Labels
Administration · Office
Site area
450 m²
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Client
conseil général de l'isère
Total gross floor
3 m²
Completion
2015
Cost
1.333 €/m²
Location: City of Voiron (near Grenoble), Isère, France Program: offices for social actors, conference room Context: old industry area, recent development of the city, high density near housing project As a social aim: the building resembles a « house for all » inspired by old vernacular houses with simple volume and large roof.
Problems : strong seismicity, high height, dense urban context, adjoining and narrow plot, flexibility, conviviality, light / sun control, local development (circular economy) Strategy : braced central core concentrating all fluids circulation, peripheral offices, modular construction system, local and natural resources, structure: solid stone and untreated natural solid wood, heat pump and photovoltaic cell.
Construction / Structural system: Ground level: massive stone (hard sandstone) from local quarries supporting the entire building. Upper levels: massive wood columns and beams in douglas pine and spruce from local forest, Alps Anti-seismic concrete core from local factories with local stone. Façade: rough aluminum frame filled with untreated wood, movable shutters, hand controlled, managing the input of sunlight Cost: 1334 €/m2 Maintenance: Very low maintenance due to the using of rough natural materials (no paint or coating) Air source heat pump and photovoltaic cell for the heating system.