Roughly 97% of the European Union (EU)’s building stock, amounting to over 30 billion m2, is not considered energy efficient, and 75 to 85% of it will still be in use in 2050.
Defining a pathway towards a ‘highly efficient and decarbonised building stock by 2050’ is a fundamental pillar of the revised Energy Performance of Buildings Directive (EPBD), requiring the transformation of the majority of buildings from highly inefficient to, at least, nearly zero-energy buildings.
This is an opportunity to significantly improve the quality of the building stock and the living conditions of all Europeans. However, to achieve this goal, the multiple barriers building owners face when planning a renovation must be overcome. One of the main barriers to renovation is the lack of knowledge about what measures to implement and in which order. Building renovation is often considered a burden that many associate with time-consuming planning, uncertainty about the value of the planned measures, dust and unreliable professionals.
The iBRoad EU-funded project works on eliminating these barriers by developing an Individual Building Renovation Roadmap for single-family houses. This tool provides a customised renovation plan over a long-term period (10-20 years). The roadmap is at its core a home-improvement plan which considers the occupants’ needs and specific situations (e.g. age, financial situation, composition and expected evolution of the household, etc.) and avoids the risk of ‘locking-out’ future renovation solutions due to a lack of foresight.
The renovation roadmap is combined with a building logbook, a repository where all the building-related information can be stored and continuously updated. The type of information stored in the logbook and its functionalities can evolve over time and could range from energy production and consumption to equipment maintenance, as well as insurance, property plans and obligations, energy bills, smart meter data and links to available financing options for renovation projects (e.g. green loans, incentives, tax credits).
This report offers an overview of the process behind the creation of an Individual Building Renovation Roadmap and covers the key issues that need to be addressed to allow its development and implementation. Real-life examples based on four existing initiatives revolving around the concept of individual building roadmaps and passports are used in this report to demonstrate how the different elements can be designed and implemented: Denmark (BetterHome), Flanders (Woningpas and EPC+), France (Passeport Efficacité Énergétique) and Germany (Individueller Sanierungsfahrplan). These specific cases were chosen for their advanced phase of development; most are entering or have just concluded the testing phase and will soon start implementation. Two of the cases (Germany and Flanders) are driven by (regional) governments, while the others are initiated or driven by private actors (BetterHome in Denmark and Passeport Efficacité Énergétique in France).