Ecological Analysis Office Building in Nuremberg
LIST Eco was commissioned to assess the impacts of preserving and renovating an existing building versus demolishing it and constructing a new one
with regard to building- and operation-related CO2 emissions for an office building in Nuremberg, LIST Eco was commissioned.
To this end, a 3D model was created for both the existing building and the potential new building during one of the early project phases. Using this as a basis, the necessary mass and quantity frameworks for the remaining materials were established in order to compare the CO2 emissions associated with preserving the existing structure with those of constructing a new load-bearing structure. The results were compared with the QNG reference value for context. In an expanded comparison, various scenarios for CO2 emissions from building operations over a 50-year period were also included and compared.
Manage to green.
The core objective of the existing building and new construction analysis described below was essentially a comparison of alternatives between the existing building (including gutting, adding a story, and expanding) and a potential new construction. The building at Bahnhofsplatz 2 was constructed in the 1960s. The structural system consists of a reinforced concrete structure with a natural stone facade. The study served the client to conduct a more in-depth examination of the possibility of retaining the existing structure—particularly in light of economic viability. The life cycle assessment (LCA) serves as the primary metric for analysis, for example in the comparison of alternatives, and is supplemented by parallel analyses using other tools. Based on the results and findings, coordination took place with the Start Nürnberg Building Council regarding the project’s next steps and implementation.
Our Services:
- Working basis: Kickoff workshop to clarify the approach and framework parameters
- Existing conditions analysis: Life cycle assessment
- New construction analysis: Life cycle assessment with variant comparison
- Comparison of existing and new construction: Ecological comparison between existing and new construction
Model for energy demand calculation, created using ECAD software:
Structural system (renovation vs. new construction), relative to the maximum CO2 budget according to QNG (LCA Class 1):
