On the Availability and Quality of Data in Spain for the Development of Indicators to Measure Building Renovation Policies Effectiveness and the Decarbonization of the Building Stock

Abstract

It is crucial to achieve long-term decarbonization goals in the building sector by relying building renovation policies on well-founded evidence based on indicators regarding the current state of the building stock, decarbonization requirements and potential, feasibility of solutions, possible failures, risks, and other relevant factors. To develop such indicators, it is necessary to have data of good quality. This chapter analyzes the availability of data in Spain and its quality to develop indicators to assess the effectiveness of building renovation policies and the progress of decarbonization. With this objective, the developability of a set of indicators was analyzed regarding their availability, processing method and data processability, and the data source quality was assessed regarding data processability, georeferencing, and data update frequency. The results show pronounced challenges related to data availability in indicators concerning deep renovation of buildings and policies for mobilizing investments into building renovation. The diversity in data processing methods, with 42% indicators directly processable and 58% requiring indirect methods, underscores the complexity in obtaining and manipulating data. Additionally, the limited georeferencing (9%) and insufficient update frequencies (54% with update frequencies of more than five years) highlight areas for improvement.