The real estate consultancy JLL has presented current figures on vacancies in Germany's seven largest office markets. Currently, around 8.5 million square metres of office space are unused. These vacancies, according to JLL's analysis, raise the question of potential alternative uses, particularly with regard to the demand for residential space in urban centres.
Challenges in Transformation
However, the study shows that the possibilities for converting vacant office space into residential use are severely limited. According to JLL's findings, only about 30 per cent of these areas are suitable for such a conversion. This highlights the complexity and the specific requirements placed on buildings when they are to be transferred from commercial to residential use.
The reasons for this limitation are diverse. They include structural characteristics of existing buildings, such as insufficient lighting, lack of fresh air supply, or unsuitable floor plan layouts. Technical infrastructure, sound insulation requirements, and building planning regulations also play a decisive role in the feasibility of such projects. Many office buildings were not originally designed for residential use, which makes subsequent adaptations complex and costly.
Implications for the Real Estate Market
The identified 30 per cent of areas that are potentially suitable for conversion into residential space represent a substantial volume, but by no means the entirety of the vacancies. This means that for the remaining approximately 70 per cent of vacant office spaces, other strategies for revitalisation or new use must be developed. These include, among other things, modernisations, concepts for flexible office spaces, or conversion for other commercial purposes.
This analysis presents differentiated challenges for project developers and investors. A detailed examination of individual building structures and locations is essential to evaluate the actual potential for conversions. JLL's market data thus clarify that office vacancy cannot be generally regarded as a direct resource for residential housing provision, but rather requires a selective approach.














