The Open Database for EPC Testing of the crossCert project is a building data repository designed to support the analysis, assessment and improvement of Energy Performance Certificates (EPCs) in Europe. It is an open database containing detailed information on buildings from several EU countries and the United Kingdom that have taken part in the project’s cross-testing activities.

The data made available to third parties includes structured inventories, EPC result reports in neutral formats and the original certificates, enabling the comparison and evaluation of different certification methodologies. In addition, where available, it incorporates real energy consumption data and plans, which are useful both for validating energy models and for generating or dynamically modelling the energy response of buildings. In some cases, it also provides information that allows specific dynamic models to be run using IESVE, supplied by one of the project partners.

All files have been anonymised to protect confidentiality. This database is hosted on Zenodo, an open repository managed under the European OpenAIRE programme and operated by CERN, with DOI identifiers for each dataset to allow accurate citation. Access is available either directly via the crossCert community on Zenodo or through the Knowledge Exchange Centre, which offers filters to easily find buildings by country, typology or type of available data, thereby supporting its use for testing, benchmarking and the development of more robust EPC models.