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This article deals with the IEE project CONSTRUCTION21 that resulted in the transnational CONSTRUCTION21 platform.

Construction21 logo.png

Full project title and funding programme

Full title of project: Construction21 - the European platform for green building practicioners

Funding programme: Intelligent Energy for Europe (IEE)


Green buildings and dissemination of best practices

Schedule and project consortium


May 2011 – May 2013

Project consortium


CONSTRUCTION21 is a European platform dedicated to green building excellence, where professionals join forces to tackle crucial issues of the market transition towards sustainability. The platform also disseminates the latest information on green building excellence.

CONSTRUCTION21 gathers the best national existing players in construction. Besides national portals it is also a European-wide service, directly linked to the EU BUILD UP website. Local organisations and companies involved in the market transformation can participate and co-own this resource. 160 online communities led by experts offer a fresh perspective on the latest topics. The best case studies in Europe are available in 7 languages. A news section, fed by professionals and media partners, disseminates the latest information available about green buildings and EU directives. 18 months after the launch of the 7 platforms, has become a significant stakeholder in the green building eco-system. In December 2013, 8000 professionals were personally registered and the monthly number of visits had reached 30 000. The initially Intelligent Energy for Europe project is now self-funded and an international non-profit association manages the network. CONSTRUCTION21 has begun to expand into other countries (Belgium and Luxemburg in 2013) and will open new platforms in 2014 in Europe and beyond.

The project CONSTRUCTION21 is therefore an ideal example for how a project can access the stage of a self-sustained, long-lasting and vivid platform.

Problems to be addressed

The problem building professionals had before the launch of the CONSTRUCTION21 platform was that there wa no transnational tool to learn and exchange know-how and experience about sustainable building issues. This was a obstacle that hindered the transnational transition of the sustainable construction sector.


  • To foster the dissemination of green building good practices and to contribute to the economic take-off of the sector.
  • A result-oriented widely used European platform.
  • To promote eco-designed and energy efficient systems and materials.
  • Europe-wide kick-start competition Europe-wide on excellence.
  • To promote and train supply-chain “clusters”.
  • To contribute to the EU 2020 targets on energy efficiency and renewable energy sources.

Actions on low-carbon economy, energy efficiency and nZEBs

  • Creation of an international database of CONSTRUCTION21 exemplary buildings.
  • Creation of an international database of CONSTRUCTION21 training dedicated to improve buildings professionals about sustainable building issues.
  • Creation of online communities about thermal regulation, life-cycle analysis, smart building, buildings refurbishment.
  • Creation of CONSTRUCTION21 green building awards to make low carbon buildings and nZEBs more visible through Europe.

Main results

The result of the project was a collaborative process for federating the work of buy-side and sell-side sustainable construction professionals in and between each country and across all of Europe in order to bring transparency and dialog on costs. One year after the 7 platforms' launch, 7 000 professionals are personally registered and 90000 are visiting it within a 3 months period. The mobilization for the CONSTRUCTION21 targets via a wide range of communication actions triggered by the consortium partners. Almost 500.000 professionals have been directly targeted. 460 case studies were online one year after the 7 platform's launch. Case studies have been built to allow declaration of products, systems and devices, with full data available. 160 online communities are opened, mostly held by experts in their field, where practitioners can share information and best practices on hot topics, e.g. Life cycle assessment or Green planning. The CONSTRUCTION21 platform is now a collaborative tool that has met the needs of multiple stakeholders, professional associations as companies, media or academic bodies; 189 partnerships have been signed in order to develop CONSTRUCTION21 contents.

Outputs developed by the project


Usage of outputs

The interactive platform for knowledge exchange and networking is well used - see above.

Uncovered expected needs

Online communities of the CONSTRUCTION21 platform are not yet established in all countries.

Project strengths and weaknesses

Project strengths

Connection with local and international networks. A clear, short target definition and description of problems to be addressed. A vivid, self-feeding, long-lasting and growing platform has been established - which by far is not achieved in all projects.

Project weaknesses

A weakness of the project was the financial fragility of the network.

Contact and homepage

IFPEB (Institut Français pour la Performance du Bâtiment), CONSTRUCTION21 France

Véronique Pappe

Tel.: +33 6 42 80 02 32



ViSiBLE report identification of successes and common challenges of EU-funded projects (2014)