Project details



ALliance for Deep RENovation in buildings (ALDREN) Implementing the European Common Voluntary Certification Scheme, as back-bone along the whole deep renovation process

Start date: 01.11.2017

Duration: 36 months

Coordinator: CSTB

Budget: 1.98 M€


The ALDREN objectives are to achieve higher renovation rates and better renovation quality by overcoming market barriers and preparing the ground for investment.
The excellence of the ALDREN solutions offered are:
1) a harmonized Energy performance rating based on the European Voluntary Certification Scheme (EVCS) verified by measurements to increase comparability, confidence and market uptake by standardized solutions (CEN / ISO);
2) associating low energy renovation with high quality indoor environments to trigger renovation and to promote health and comfort;
3) aligning market recognition of high quality with enhanced building value by financial tools and capacity building. Establishing business case for deep renovation to motivate private investment.
These solutions will be integrated in a consistent, common way in a building passport to ensure the results and effective financing also in case of step by step renovation.

The ALDREN coordinate and support actions bring together in ALDREN Alliance the main stakeholders involved in building renovation to specify the needs of the non-residential building sector and to organize the pilot use of the ALDREN procedure. This innovative approach to management ensures continuous feedback from stakeholders.
The ALDREN actions are sound and credible. They answer a market request for common reliable tools by using the EVCS policy instrument (EPBD Art. 11(9)) and by completing it to reach the needed holistic approach for deep renovation.
The impact on energy savings during the project is estimated at 30 GWh and at 1000 GWh/a after the project.

The implementation and dissemination of the ALDREN procedure will use existing channels of environmental scheme operators for the pilot phase, but also for further dissemination.
The ALDREN overarching outcome will be the infrastructure to enable market transformation by deep renovation driven by the business case and able to directly support the EU policies (EED, EPBD).

List of achievements

Access short videos on the project outcomes here.
ALDREN modules & tools are available here.
More information on the ALDEN pilot sites here.


Contact person: Mathieu Rivallain
Address: CSTB