The design intention here is primarily contextual. The project is constructed around the particular morphology of the site. It is inspired by it. The result is a very compact building due to reducing to a minimum the floor area and facades, and formally simple within a unity of volume and appearance. The building is anchored to the existing party wall in order to free up a large area to the east for landscaping. The enclosed nature of the site is respected, while creating a large opening made possible between the courtyard and the road thanks to the paved entrance area.
The project's functionality is facilitated by a clear organisation. To the north, the entrance and interior double-height 'public' spaces are a continuation of the paved courtyard, which gives onto the reception. To the south, the workspaces and related services. In the offices and leisure spaces (lounge area on the mezzanine and staffroom on the ground floor), visual, acoustic and olfactory quality and comfort have been given particular attention. Circulation is naturally lit by roof lights to the west and by openings along the raw earth wall. The upstairs corridor is thereby transformed into a walkway bathed in natural light, which is let through to the ground-floor corridor below. Both of these, broader than regulations require, link the service areas (archives, photocopying, toilets...) with the areas served (partitioned, flexible workspaces) giving onto the large garden planted with indigenous trees and plant varieties.
The construction systems used are tried and tested systems: stone-clad walls on the ground floor, glazed frames, timber-frame walls and structure. The latter have the advantage of being a dry building process, prefabricated with finishes in the workshop, allowing for a clean site and rapid assembly. In the middle of the building, a great wall of raw earth, the heart of the project, provides visual warmth as well as thermal inertia.This wall is part of the passive (bioclimatic) environmental measures incorporated into the building in order to minimise energy consumption, maintenance and upkeep: thermal inertia, powerful criss-crossed hemp insulation (25 to 30cm), static and adjustable sun-screening, east–west orientation of the building, internal organisation according to orientation and views, and principles of natural cross-ventilation providing greater comfort in winter and summer, with overall consumption in accordance with Passivhaus certification.
Le fonctionnement du projet est par ailleurs facilité par une organisation claire. Au nord, les accès et les espaces « publics » intérieurs en double hauteur et en continuité avec la cour pavée donnant sur l’accueil. Au sud la zone de travail et ses services. Dans les bureaux et les espaces de vie (espace salon en mezzanine et espace personnel au RDC), la qualité et le confort visuel, acoustique et olfactif ont été privilégiés. Les circulations sont éclairées naturellement par des ouvertures zénithales à l’ouest et par des trémies le long du mur en terre crue. Le couloir de l’étage est ainsi transformé en véritable passerelle baignée de lumière et permettent d’éclairer naturellement le couloir du RDC. Ceux-ci, plus larges que la norme, font le lien entre les espaces servants (archives, copies, sanitaires…) et les espaces servis (espaces de travail cloisonnés et flexibles) donnant sur le grand jardin constitué d’arbres et de plantes d’essences locales.Les systèmes constructifs utilisés sont des systèmes éprouvés : murs de pierre en parement au RDC, châssis vitrés, murs et charpente à ossature bois. Ces derniers ayant l’avantage de la construction sèche et de la préfabrication en atelier en termes de finition, de chantier propre et de rapidité d’assemblage. Au centre du bâtiment, un grand voile de terre crue, colonne vertébrale du projet, apportera chaleur visuelle et inertie thermique.Ce mur fait partie des dispositifs environnementaux passifs (bioclimatiques) intégrés au bâtiment afin de minimiser les consommations énergétiques, la maintenance et l’entretien : inertie thermique, forte isolation de laine de chanvre croisée (25 à 30cm), protections solaires fixes et mobiles, implantation générale du bâtiment Est-Ouest, organisation interne selon l’orientation et les vues et principes de ventilation naturelle traversant permettent un confort d’hiver et d’été accrus et une consommation générale équivalente au label Passivhaus.
INFORMATION CENTRE FOR THE PARC, MILLY-LA-FORET
Winner competition 2019
Winner of the price rene fontaine architecture and heritage 2015
Winner of the price environnement and architecture of essonne 2013
Winner of the national price of raw earth architecture 2013 (interior design)
Winner of the lauriers 2014 of wooden construction
Eco-responsability :
Passive project
15 kw.h/m2 heating
Local materials (stone + adobe + raw earth plaster)
wood joinery + natural oil
Location : Milly-La-Forêt
Commission : public competition
Client : conseil général de l’Essonne
Area : 1 000 m² shon
Value : 1.8 m€ ht landscape
Date : delivery 2013
Assignment : S. Joly & P. E. Loiret, mandatory architects basic mission + construction management + ehq + landscape
Team : Cerm (liquids, ehq), Evp (structural engineer), V. Pourtau (economist)
Project managers : Maud Chevet (public competition) / Charlotte Siwiorek (studies), Andrea Santangelo (construction management)