Who actually owns the city? And why do local authorities find it so difficult to use their land in a climate-friendly way? The answer does not lie in a lack of will or a lack of concepts, but in ownership itself – a bulwark against sustainable urban development. If you want truly climate-friendly cities, you have to tackle municipal land policy. Because property is the new bottleneck of sustainability.
- Analysis of the central role of land policy for climate protection and sustainable urban development.
- Critical examination of historical developments in land law and ownership in Germany, Austria and Switzerland.
- Explanation of how private ownership and speculative land utilization slow down sustainability.
- Detailed examples from local authorities: options for action, obstacles and innovative approaches.
- Deepening the interactions between land policy, climate resilience and social urban development.
- Legal, economic and social barriers to a climate-oriented land policy.
- Discussion about reforms: Leaseholds, pre-emption rights, land funds and new alliances.
- Evaluation of international models and their transferability to German-speaking countries.
- Conclusion: Why sustainable urban development needs a paradigm shift in dealing with property.
Property as a straitjacket – How land policy is blocking the climate
Anyone walking through German cities today can see this at first glance: Urban space is characterized by ownership. For decades, land has been privatized, parceled out, sold and inherited. This process has evolved historically and is deeply rooted in the bourgeois self-image. But this is precisely where the dilemma of sustainable urban development begins. This is because property is not neutral – it is an instrument of power that fundamentally limits access to land, its use and thus also its development opportunities. Local authorities experience every day how their planning options are frustrated by the limits of ownership.
The German Basic Law guarantees property and protects it to a special degree. However, what was intended as protection against arbitrariness and state encroachment is now often blocking cities’ ability to adapt to new challenges. Climate change, heat waves, heavy rainfall, land consumption – all of these require a flexible, forward-looking land policy geared towards the common good. However, the majority of urban land has long been in private hands. As a result, local authorities can often only buy back land for parks, fresh air corridors, retention areas or sustainable housing at a high price – if at all. Speculative price increases and confusing ownership structures do the rest.
Land is not a resource that can be increased at will. On the contrary: its scarcity and its central role in climate protection make it a key strategic resource of the 21st century. But while almost all other climate policy issues – from energy and mobility to the circular economy – have long since become central fields of action, land policy has been relegated to a niche existence. This is not due to a lack of interest on the part of local authorities, but to the property system itself. Every rezoning, every change of use, every land swap thus becomes a small-scale negotiation thriller. The most powerful weapon against sustainable urban development is not a lack of political will, but private ownership of land.
At the same time, it is clear that where local authorities still have significant areas of land at their disposal, they can take a climate-oriented and socially responsible approach. From Munich to Vienna, from Freiburg to Zurich – innovative districts, green corridors, sponge city concepts and affordable housing are being created wherever municipal land is involved. But this is the exception, not the rule. Historical mistakes – such as the mass sale of municipal land in the 1990s and 2000s – are now taking bitter revenge. Municipal land policy has therefore become a question of fate for the climate-friendly city.
The key insight: property is not a natural right, but a social construction – and can therefore be shaped. Leaving the land market to the forces of supply and demand alone risks the ability of cities to control it. Municipalities need new instruments, the courage to reclaim land and, above all, a radically different understanding of property: as an obligation to the common good and climate justice.
Land law, speculation and climate targets – a toxic triangle
The historical development of land policy in German-speaking countries is a story of missed opportunities. The land issue was already being debated in the German Empire, the Weimar Republic discussed expropriation in favor of housing construction, and land reform was also a key issue after the Second World War. However, private ownership always triumphed over public welfare-oriented approaches. With the liberalization of the markets and the globalization of the real estate sector since the 1990s, this imbalance has worsened. Land has become a commodity, a speculative asset, an object of investment.
This development has had a fatal impact, especially in an urban context. Land prices are rising faster than any increase in construction costs, and private owners’ expectations of returns collide with the need for affordable housing, social infrastructure and green spaces. Local authorities are caught in a vicious circle: they have to spend ever higher sums to buy back land, which in turn drives the price of land even higher. The market does not regulate anything here – it produces scarcity, exclusion and social division.
The climate targets set by the federal, state and local governments are ambitious. But they will remain a waste of time as long as land policy does not follow suit. If you want sponge city strategies, heat-resilient neighborhoods, urban agriculture or large-scale unsealing, you need land. And land that the municipality actually has access to. Private owners, however, have no interest in short-term returns from public use. Their logic is to increase value, not the common good. Climate resilience thus becomes a bargaining chip – or falls by the wayside entirely.
Legally, the municipalities are subject to strict limits. The German Building Code does offer instruments such as the right of first refusal, urban development contracts and the reallocation paragraph. However, these tools are often toothless: they are only effective if certain narrow conditions are met, are delayed by legal proceedings or are weakened by lobbying interests at federal level. Particularly in booming regions, owners pay dearly for their consent or block projects for years. As a result, climate policy gets bogged down in the thicket of land law.
Added to this is the internationalization of the markets. More and more land is in the portfolios of institutional investors, global investment funds or anonymous special purpose vehicles. This makes it almost impossible for local authorities to establish any contact at all with the owners – let alone manage them strategically. The land market has become decoupled from urban society. The question of power is therefore: who owns the city – and who decides on its future?
Innovative approaches: Municipal scope for action and its limits
Despite all the obstacles, there are impressive lighthouse projects that show how municipal land policy can work differently and better. The city of Munich, for example, has been pursuing a consistent land reservation policy for years: wherever possible, the local authority buys land in order to develop it according to criteria that are oriented towards the common good. The instrument of heritable building rights prevents strategic land from disappearing permanently from public ownership. In this way, affordable housing, social infrastructure and climate-adapted open spaces are created – permanently.
Another example is provided by the City of Vienna. Here, the municipal land fund is actively used to secure land for social and ecological projects. The land is not allocated to the highest bidder, but according to clear quality criteria. The result: urban districts are created with a high mix of residents, generous green spaces and innovative mobility concepts. At the same time, speculation and price increases are specifically curbed. Vienna is not considered a role model for many German cities for nothing.
However, smaller cities and municipalities are also increasingly developing creative strategies. In Tübingen, for example, the concept of concept allocation is used: plots are not sold according to the highest bid, but according to the quality of the submitted usage concepts. Criteria such as climate protection, social mix or public welfare-oriented sponsorship are at the forefront. The result is districts that are geared towards the needs of urban society – and not towards the profit interests of investors.
All these approaches show that Municipal land policy can be a key to sustainable, climate-oriented urban development. However, it quickly comes up against legal and financial limits. Local authorities’ resources are limited and market dynamics are overpowering. Without a far-reaching reform of land law and without support from the federal and state governments, these lighthouse projects will remain the exception. The land market is not a normal market segment – it is the nerve center of urban transformation.
Above all, however, we need a paradigm shift in the way we deal with property. Only if the common good is given priority over individual profit interests can cities become climate-friendly, socially just and sustainable. This requires courage – and a new self-image of municipal planning.
Ways out of the ownership trap: reforms, alliances and international perspectives
Overcoming the property blockade requires more than just local initiatives. What is needed is a package of measures that systematically expands the municipalities’ scope for action. First and foremost is the reform of land law. The municipal right of first refusal must be strengthened, streamlined and made less bureaucratic. The introduction of a land fund geared towards the common good at state or federal level could also enable local authorities to strategically secure land – independently of short-term budgetary constraints. The idea is that society, not the market, decides how land is used.
Another lever lies in the expansion of heritable building rights. It prevents valuable land from permanently ending up in private hands and secures the municipality’s control in the long term. However, this requires a change in mentality – not only among investors, but also in administration and among political decision-makers. The narrative of “good ownership” must be replaced by the model of “responsible ownership”.
In some cases, alliances with civil society actors, housing cooperatives and local initiatives can help to remove land from speculation. Models such as the Mietshäuser Syndikat or foundation structures create new forms of ownership that are committed to the common good. Networking with international pioneers is also an important source of inspiration. Cities such as Zurich, Copenhagen and Amsterdam show how consistent land policy enables sustainable urban development.
At the same time, the federal and state governments must strengthen local authorities financially and legally. Funding programs, guarantees and targeted tax incentives can facilitate the reclamation of land and accelerate the implementation of climate-oriented projects. Digitalization offers additional opportunities: digital land registry systems, data-supported land analysis and transparent award procedures can speed up processes and prevent abuse.
Ultimately, the land issue is a social issue. What kind of city do we want? Who should have a say? And how much of the common good are we prepared to price into property rights? The transformation to a sustainable city is not a technocratic process – it is a political tour de force. Anyone who wants to save the climate must have the courage to tackle the very foundations of property ownership. This is the only way to dissolve the silent blockades that are currently preventing any real innovation in many places.
Conclusion: No climate-friendly city without a new land policy
Municipal land policy is the underestimated lever in sustainable urban development. While technologies, energy and mobility receive a lot of attention, land remains the silent bottleneck. In many places, private ownership of land is blocking the necessary adaptations to climate change, social challenges and new living models. The examples from Munich, Vienna and Tübingen show this: Where local authorities retain control, innovative, climate-resilient and socially just districts are created. But this remains the great exception.
The only way to a climate-friendly city is through a radical reassessment of property. Land is not a commodity, but the basis for social participation and ecological resilience. Anyone who wants sustainable urban development must have the courage to rethink property itself – as an obligation, not a privilege. This requires a reform of land law, courageous municipalities, strong alliances and the political will to put the common good above short-term profit interests.
The challenges are great, the resistance powerful. But the alternatives are far more expensive: urban sprawl, social division, climatic tipping points. The time for niche solutions is over. A new, socio-ecological land policy is needed – as the foundation for the city of the future. Only then can urban space once again become what it should be: a common good for all, open to change and ready for the climate of tomorrow.
