CORDIS - EU research results

Residential Retrofit assessment platform and demonstrations for near zero energy and CO2 emissions with optimum cost, health, comfort and environmental quality.

Project description

New refurbishment assessment tool for Europe’s buildings

Refurbishment is crucial for upgrading the ageing and inefficient residential buildings in Europe to meet energy targets. In this context, the EU-funded ReCO2ST project will address the challenges of refurbishing buildings to achieve nearly zero emission standards. To this end, the project will utilise a refurbishment assessment tool to generate scenarios and empower building owners, whether public or private, in making informed decisions. The tool will aid in developing action plans for renovation through integrated project delivery and will facilitate the installation of a customisable and innovative refurbishment technologies package. To demonstrate the efficacy of the assessment tool and associated technologies, the project will be implemented in four apartment block buildings located in Denmark, Spain, Switzerland and the United Kingdom.


The European ageing and inefficient residential building stock needs to be refurbished to achieve the targets relevant to energy efficiency and to secure healthy and comfortable living conditions. RECO2ST addresses the challenges of nZEB refurbishment through a systemic 3 step approach: Initially a Refurbishment Assessment Tool (RAT) will be deployed to create refurbishment scenarios, empowering the decision making of the building owner, public or private. Second, Action Plans for the renovation will be formed through Integrated Project Delivery (IPD) and finally a refurbishment package of innovative and customizable technologies will be installed (Retrofit-Kit) for personalized renovation.
The Retrofit-Kit features cost efficient and modular technologies: Vacuum insulation (VIP), Modular Photovoltaics, Smart Windows with heating and cooling capacity, Wireless Sensor Networks (WSN), Intelligent Energy Management (IEMS), Nature Based Technologies (NBT) and optionally Cool Materials and Solutions. Their integration into personalized refurbishment packages for four demonstration sites will be conducted and validated. The renovation assessment tool and associated technologies will be demonstrated in four apartment block buildings (Spain, Switzerland, UK and Denmark) capturing climatic and construction variability across Europe, in total 67 apartments and 4900m2 of build space. The renovation assessment tool will tested on early adopter sites during the project. The modularity and adaptability of the RECO2ST Retrofit-Kit is key to achieving the expected performance and the Least-Cost method developed in the project will facilitate achieving this performance for the right price with a personalized renovation Action Plan developed quickly and accurately for each site under renovation. The demonstration sites will be refurbished into nZEBs achieving savings between 71 and 99%, with excellent internal environmental quality and payback in less than 15 years.

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Net EU contribution
€ 757 129,44
9220 Aalborg

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Danmark Nordjylland Nordjylland
Activity type
Higher or Secondary Education Establishments
Total cost
€ 757 129,58

Participants (18)