Large-scale rehabilitation of 988 social housing units

building renovation wood off-site

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Last modified by the author on 15/04/2021 - 16:35

Renovation

Building Type : Collective housing > 50m
Construction Year : 2019
Delivery year : 2021
Address 1 - street : 10-19 Chemin de la Ferme, 1 Chemin de la Grange, 1-2 Chemin du Puits, 20 à 22 Chemin de la Ferme, 1-7 Chemin du grand bois 69256 VAULX-EN-VELIN, France
Climate zone : [Csa] Interior Mediterranean - Mild with dry, hot summer.
Net Floor Area : 65 587 m²
Construction/refurbishment cost : 25 288 000 €
Number of Dwelling : 988 Dwelling
Cost/m2 : 385.56 €/m²

Certifications :

Primary energy need
90 kWhep/m².an
(Calculation method : RT 2005 )

Energy consumption

Economical buildingBuilding

< 50A

51 à 90B

91 à 150C

151 à 230D

231 à 330E

331 à 450F

> 450G

Energy-intensive building

General information

This project used a process to rehabilitate large-scale, short-term housing in order to meet the city's objectives. This process makes it possible to industrialize the tailor-made thanks to BIM and therefore to massify and increase the number of rehabilitation.

EST METROPOLE HABITAT acquired in 2015 the following residences located in Vaulx-en-Velin in the Mas du Taureau district:
- Noirettes 2 (from LYON METROPOLE HABITAT),
- Noirettes 3 and Grand Bois (from GRAND LYON HABITAT).
EST METROPOLE HABITAT is undertaking within the framework of this program, and following this acquisition, an ambitious and innovative operation to rehabilitate buildings totaling 980 housing units.

Sustainable development approach of the project owner

The objective is to reduce energy consumption and greenhouse gas emissions from the building. It is therefore necessary to carry out a rehabilitation to achieve this objective. But the gains obtained by the renovation must not be canceled out by the installation of materials whose production is greedy in energy and emitting greenhouse gases.

Architectural description

The objective is to break down the volumes and give a specific identity to the buildings by distinctly identifying each stairwell in order to give tenants the pride of living in their accommodation. This will make it possible to raise the image of social housing that large complexes of this type can carry, by choosing materials with a level of finish equivalent to what can be done in new construction and in private condominiums.

Photo credit

Atelier 127

Stakeholders

Contractor

Name : Est Métropole Habitat – Office public de l'Habitat - 53 avenue Paul Krüger - BP 45030

Contact : Paul SACHOT p.sachot[a]est-metropole-habitat.fr 0674832264

Construction Manager

Name : L'ATELIER 127 - BBC & ASSOCIES - ITHAQUES - WRA

http://latelier127.com/ https://www.bbcassocies.com/ http://www.ithaques.fr/ http://wildrabbits.fr/

Stakeholders

Function : Environmental consultancy

CITINEA

https://www.citinea.fr/

Function : Other consultancy agency

MATTE

http://www.matte.fr/index.html

Structure, Fluids, Thermal

Function : Other consultancy agency

MILIEU STUDIO

http://milieu.fr/

Environment

Contracting method

General Contractor

Type of market

Realization

Energy

Energy consumption

Primary energy need : 90,00 kWhep/m².an

Calculation method : RT 2005

Initial consumption : 215,00 kWhep/m².an

Renewables & systems

Systems

Heating system :

Urban network

Hot water system :

Urban network

Cooling system :

No cooling system

Ventilation system :

Humidity sensitive Air Handling Unit (Hygro B

Renewable systems :

No renewable energy systems

Environment

Urban environment

The operation is located in a QPV sector with a lot of social housing (~ 90%) and a high unemployment rate. The will of the municipality is to include it in the NPNRU program with the creation of new roads, the arrival of the tram, the construction of a media library and to create social mix with private promoters who will create access. .

Products

Product

Energy jump

Arbonis

34, Rue Antoine Primat CS 30249 69603 VILLEURBANNE Cédex Contact : arbonis.se[a]arbonis.com Tél. 04 72 78 36 60 - Fax : 04 72 78 12 55

Product category : Finishing work / Partitions, insulation

Insulating panels prefabricated in the factory following a 3D scan of all the existing facades using BIM. These wood-frame panels, whose insulation comes from recycled plastic bottles or wood fibers, are attached directly to the facade and require less handling than a more traditional process. This solution is therefore much faster and made it possible to carry out the work in 19 months instead of 6 years in normal times. The process also no longer needs fixed scaffolding, a cradle and / or a mobile crane are sufficient.

This process considerably reduces the nuisance of construction sites: much less site waste since everything is manufactured in the factory, fewer holes to be made on the facade, less noise for tenants ...

Costs

Construction and exploitation costs

Total cost of the building : 24 000 000 €

Contest

Reasons for participating in the competition(s)

Il y a une véritable volonté de faire avancer le secteur du bâtiment, sans attendre les évolutions législatives trop lentes, en expérimentant, en innovant et en partageant ses expériences, ce qui est en partie le rôle du bailleur social. Le maître d'ouvrage a utilisé un procédé innovant pour cette opération et souhaite partager cette technique.