The fulfilment of the energy and climate objectives for the year 2020 and the year 2050 requires major initiatives from the building sector. Energy and climate renovations to improve energy efficiency, reduce carbon emissions and increase renewable energy use of the existing building stock are necessary, but are not currently realized to the extent needed. Therefore, it is of great importance to study owner and resident acceptance of major renovations of buildings and their result. The acceptance, motivation, needs, obstacles and drivers of residents and decision makers such as investors, owners, planners and contractors with respect to the renovation process need to be characterized and understood. This type of knowledge is fundamental to strengthen the methodology proposed by the IEA EBC Annex 56.