With the recent adoption of the Building Modernisation Act (GModG) by the Bundestag and Bundesrat, energy law for buildings in Germany is undergoing a fundamental restructuring. This new regulation aims to increase energy efficiency in the real estate sector while meeting climate protection targets. The effects of the Act differ significantly between new build projects and the existing building stock, which is important for investors and owners.
For new builds, the GModG creates clear and improved planning certainty. The new regulations formulate precise requirements for energy efficiency and the technologies used, which could facilitate long-term investment decisions in this segment. The introduction of stringent standards is intended to help further minimise the primary energy demand of newly constructed buildings. This promotes the use of innovative construction methods and sustainable energy supply concepts, which must be considered already during the project development phase.
Challenges for the Existing Building Stock
In contrast to the new build segment, the GModG poses a number of uncertainties for the existing building stock. While the Act generally provides for the gradual transition to climate-friendly heating systems, the exact implementation modalities and the associated financial burdens for owners are not yet fully transparent. It is foreseeable that the investment requirement for existing properties will be substantial in order to meet the new energy requirements. This affects both private owners and institutional investors.
The complexity of funding programmes and the duration of implementation deadlines are expected to have high relevance for market development. Owners must carry out detailed analyses of the energy condition of their properties and develop suitable renovation strategies. The question of the extent to which the incurred costs can be passed on to rents remains a central economic consideration that will determine the attractiveness of existing properties as an investment.
Outlook and Implications
The GModG represents an important step towards achieving climate targets in the building sector. However, the varying impacts on new builds and existing stock require careful analysis and adaptation of strategies by market participants. For new build projects, there is an opportunity to benefit from clear guidelines and the promotion of future-proof technologies. In the existing stock segment, on the other hand, in-depth knowledge of legal requirements and available modernisation options is crucial to secure the value retention and future viability of properties.
