Name of organisation: Grand Lyon Habitat
Stage of development: completed
Year of finalization: 2010
Type of project: construction
Area: suburban
Scale: group of buildings
Type of building: Apartment in a block of five or less stories
Number of units/dwellings: 34
Tenure: social rental
Street: Avenue Jean Jaurès, 325
Postcode: 69151
City: Décines-Charpieu
Region/ County: Rhône-Alpes
Country: France
Last Update: 14.04.2015
The energy management strategy was an important aspect of the project with:
- The setup of an environmental supervising committee
- The use of bill of specifications including environmental prescriptions
- The participation of architects experienced in environmental design
- The use of dynamic thermal simulation software
- The involvement of the architects in the execution works and the scheduling, leading and coordinating phases to avoid a division of the project management.
At the beginning of the project, the label THPE (Very high energy performance) was aimed at. This label considers a level of consumption lower than 20% of the baseline consumption defined by the 2005 thermal regulation (this baseline consumption corresponds to the consumption of the building including imposed performances of the equipment and the structure).
Finally the objectives evolved and it was finally the BBC label (Low Energy Buildings) which was aimed at. This label considers a level of consumption lower than 50 kWh/m²/year (for heating, cooling, DHW, ventilation and lighting).
The Qualitel label (Habitat&Environnement by Cerqual and the QEB label for the management of the project respecting the environmental quality of buildings were also obtained.
Water Saving
Water savings equipment are used as well as low-energy bulbs, low-delaying sensors and the priority given to natural lighting in the common parts.
Thermal Insulation
One of the important aspects of this project is the external insulation fixed on a reinforced concrete structure. Above this external insulation, on the west and south façades, double skin façades were set to act as sun breakers. Self-supporting balconies were installed to avoid thermal bridges. Lastly, to ensure a high performance of the building, highly performing windows were selected.
Certification
The following certificates were obtained for this project:
BBC effinergie: Certificate obtained for consumptions of primary energy lower than 50kWh/m² year for heating, adjusted according to the climatic conditions and altitude.
Qualitel Habitat&Environnement by Cerqual: This certificate is related to the compliance with some commitments:
QEB: Management of the project respecting the environmental quality of buildings.
Funding
Statutory approvals | Rent-charge : 900 580€ without taxes The rent-charge includes various costs: plot acquisition, notary fees, levelling work, networks tilting, demolition, building permit fees…) |
Design |
Engineering costs: 635 274€ without taxes
|
Construction overall | Overall cost for the construction: 3 685 076 € without taxes Globalcost (engineering costs + construction): 5 223 360 € without taxes |
VAT | 5,5% |
Running costs | Heating: Gas: 350.5€ /month Maintenance boiler: 63.3€/ month Total: 413.8€/m² |
Operation, inspection and service | Can be considered as included in the maintenance-repairs and replacement costs (see below) |
Maintenance – repairs and replacement | Heating Maintenance boiler: 63€/month |
Public financial assistance (loan/annuity/grant) | Subsidy: 1 533 420€ all taxes included (28% of the total) |
Ventilation
In terms of ventilation, it was chosen to install a mechanical ventilation with heat recovery.
Solar Thermal
A solar domestic hot water system was installed on the roof. The remaining needs in terms of domestic hot water as well as the heating needs are ensured by a condensing boiler.
Environmental Design
The summer comfort was addressed through:
Ms Carine Puyol
USH - The French Federation of Social Housing Providers
E-mail: carine.puyol@union-habitat.org
Web: www.union-habitat.org