Our Topics


Information System

The focus of our information system is the built environment with its elements buildings, infrastructures and anthropogenically transformed open spaces. In accordance with the currently valid sustainability and climate protection goals, our goal is to develop the built environment with the target of sustainability and resilience, taking into account spatial contexts (urban, rural, etc.). We focus thereby on resources that can be mapped via the materiality of building structures, as well as risks that arise primarily due to natural hazards. We address issues of interest to researchers and stakeholders in urban, regional and environmental planning as well as industry in this field and provide them with corresponding basic information, downloadable free of charge, on building structures in our information system.

The information system known as "Information System Built Environment" is a department within the IOER Research Data Centre (IOER RDC). 


  • Building data - Download: Since January 2024 also data on raw material and waste categories as well as greenhouse gas emissions available for download in CSV format  
  • IOER publication "CirCon4Climate - Strengthening Circular Construction Practices for Climate Change Mitigation" presents an overview of "best practices" of circular construction in Germany in order to promote circular construction nationally and internationally (https://doi.org/10.5281/zenodo.10304259).
  • IOER publication answers the question of the importance of spatial location for the creation of a circular built environment in the Springer book "Creating a Roadmap Towards Circularity in the Built Environment". (https://doi.org/10.1007/978-3-031-45980-1_21)
  • Construction activity - Update: construction of new buildings and demolition of entire buildings - statistical figures up to 2022