Research project | BQ-LCA. Lebenszyklusanalysen von Maßnahmen einer ökologisch-orientierten und sozialverträglichen Bestandsentwicklung von Siedlungen der 1950er bis 1980er Jahre

Building on the project Q-LCA (link), this research aims to determine CO2 emissions and other environmental impacts caused by the transformation of existing settlements over their entire life cycle. The focus is on post-war housing estates (1950s to 1970s inclusive), as these estates make up a large proportion of the German housing stock and are in great need of renovation due to their age. 

In order to assess the environmental impact of the transformation of these housing estates, various development strategies are being evaluated: (i) renovation, (ii) renovation/densification, and (iii) demolition/replacement with new buildings. In addition to building construction and technical infrastructure (roads, parking spaces, sewerage), energy supply systems are also included in the assessment. With its holistic approach, the research project expands existing research on energy consumption and CO2 emissions in building construction and civil engineering, broadens the focus to include existing housing stock, and determines the marginal benefits and costs of various ecological redevelopment strategies.

In cooperation with: Potsdam University of Applied Sciences and eZeit Analytics

Commissioned by: Federal Institute for Research on Building, Urban Affairs and Spatial Development (BBSR)

Duration: 2025 – 2027