Hamburg facing a referendum on a new Olympic bid: investment in the future or an overly expensive risk?
On May 31, 2026, Hamburg will once again decide whether it wants to open the way for a bid to host the Olympic and Paralympic Games in 2036, 2040 or 2044. It is a politically and financially sensitive decision for the German port city, which already rejected a bid for the 2024 Games in a referendum in 2015. This time, the city Senate, the German Olympic Sports Confederation and supporters of the bid argue that the concept is different, more compact and more financially cautious, while opponents warn that the risks remain great. At the center of the debate is the price of the project: according to the financial framework published by Hamburg, the organization and staging of the Games alone are estimated at about 4.8 billion euros, with expected revenues of approximately 4.9 billion euros.
According to the announcement by the Hamburg Senate, the plan does not refer only to the sports competition, but also to longer-term investments in the city's infrastructure, public transport, sports facilities, green spaces and accessibility. The Senate states that the organizational costs would be covered by event revenues, including the contribution of the International Olympic Committee, local sponsorships, ticket sales, hospitality programs and licensing. Critics, however, question the assumptions on which the financial plan is based, especially when it comes to inflation, security costs, the scope of public investment and uncertain federal support.
The May 31 referendum as a key political obstacle
The citizens of Hamburg will decide in the referendum whether they support continuing the process through which the city could compete to host the Olympic and Paralympic Games. According to the city's official information, postal voting has been made possible before the referendum day itself, and voting materials began to be sent on April 22, 2026. A positive decision would not automatically mean that Hamburg gets the Games, but that the city continues the national bidding process within Germany. The German Olympic Sports Confederation will decide on the final German proposal, and then any potential bid would proceed toward the procedure of the International Olympic Committee.
According to DOSB information, Germany is currently considering four concepts: Berlin, Hamburg, Munich and the Rhine-Ruhr region. The Confederation states that the exact year of staging does not have to be chosen immediately, because the 2036, 2040 or 2044 Games are being considered. In the reformed bidding system of the International Olympic Committee, potential hosts first enter the so-called continuous dialogue, in which concepts can be further developed without being directly tied to one year. DOSB has announced that Berlin, Hamburg, Munich and Rhine-Ruhr have passed the first phase of the national process, while in the second phase cities and regions are left room to hold referendums until the end of June 2026.
For Hamburg, such a referendum is politically especially important because of the experience from 2015. According to the final results of the Statistical Office for Hamburg and Schleswig-Holstein, 51.6 percent of valid votes were then against the bid for the 2024 Games, while 48.4 percent were in favor. Turnout was just over 50 percent, which showed how mobilizing the issue was. Opponents, on the other hand, argue that the fundamental questions have not changed: who bears the risk if costs rise, and how much of the sporting spectacle will truly remain for the city's residents.
Financial framework: 4.8 billion euros for staging and an additional 1.3 billion for investments
According to the financial concept published by the Hamburg Senate, the largest part of the direct costs relates to the organization and staging of the competition. This budget includes temporary infrastructure, services, staff, technology, marketing, communication and preparation of venues. The city and DOSB estimate that this part would cost about 4.8 billion euros. On the other hand, projected revenues amount to about 4.9 billion euros, so the official calculation shows the possibility of a surplus of about 100 million euros.
The revenue structure is an important part of the debate. The Hamburg Senate states that around 32 percent of revenues are expected from local sponsorship, around 30 percent from ticket sales, with around 10 million tickets being mentioned, and around 25 percent from the contribution of the International Olympic Committee, which would amount to about 1.2 billion euros. For the Paralympic Games, the official explanation further states that a contribution from the national government is customary. This is exactly where opponents see one of the main risks, because revenues from sponsorships and tickets can change depending on the economic environment, ticket prices and public support.
Separate from the organizational budget, Hamburg envisages an investment budget of about 1.3 billion euros. According to the Senate, this money would not be spent solely because of the Games, but on projects that should have a long-term effect: modernization of sports and training facilities, accessibility, sports education, green spaces, sustainability, public transport, roads, pedestrian and cycling routes, and railway infrastructure. City authorities claim that the investments would be distributed over approximately ten years, which would make the annual burden fit into the city's investment budget. But that claim remains the subject of political dispute, because some critics warn that long-term investments often become more expensive when they are linked to the deadlines of a major event.
The supporters' argument: fewer new venues and greater reliance on existing infrastructure
One of the main messages of Hamburg's concept is that the city would not build a large number of venues exclusively for the Olympic Games. According to the official plan, 76 percent of sports locations already exist, while 24 percent would be temporarily built and then removed, repurposed or used in other sports and public spaces. Hamburg's exhibition halls, Millerntorstadion and Barclay Arena are cited as examples of existing or adaptable locations. The city also emphasizes that the Olympic Village would not be a separate project without later use, but part of the already planned development of Science City in Bahrenfeld.
According to a dpa report carried by Welt, the Olympic Village is envisioned for around 15,000 male and female athletes, and after the Games it should be converted into around 9,000 affordable apartments. In a city that has faced pressure on the rental market for years, such an announcement is presented as one of the key arguments in favor of the bid. Nevertheless, opponents warn that major urban development projects can further raise prices in surrounding neighborhoods, especially if public control over housing and land is not strong enough.
Supporters of the bid also emphasize the transport effect. According to the official concept, the Games should accelerate projects such as investments in the main railway station, the new U5 and S6 lines, expansion of space for cyclists and pedestrians, and digital traffic management. Hamburg also announces additional cycling routes and a stronger reliance on public transport. Critics are calling for a clearer separation between projects that would be built anyway and those that are directly tied to the Olympic deadline, because the realistic assessment of the bid's additional cost also depends on that.
Support from the economy and the question of who assumes the risk
The Hamburg Senate and economic actors emphasize that local companies would benefit from organizing the Games, especially in services, construction, logistics, technology, tourism and creative industries. The official bid website states that around 80 percent of companies support Hamburg's Olympic ambition. According to the Senate, the federal government supports the German bid and promises financial participation to the future host region, especially in infrastructure investments of national significance. Hamburg sees this as an opportunity to attract funds for projects that have long been in the plans, such as the expansion of the main railway station.
However, publicly available information still does not provide a final and detailed amount of the future federal contribution for Hamburg. Because of this, opponents claim that part of the financial structure relies on political promises, not on fully developed contractual obligations. An additional problem is inflation. The original text warns that inflationary pressures, infrastructure and external costs are being particularly questioned in the Hamburg debate. This point is important because, if Hamburg enters the process, the Games would be held only in ten or more years. Labor costs, construction materials, energy, security and transport can change significantly during that period. The financial concept is therefore not only a question of today's prices, but also a question of the city's ability to control risks and contracts over a long period.
Criticism: security, climate and the experiences of other Olympic hosts
Opponents of the bid, including the NOlympia initiative, argue that the official plan underestimates the risks. According to the dpa report published by Welt, critics particularly problematize security costs because they do not see them presented clearly enough in the financial framework. A comparison with Paris 2024 often appears in the debate, among other things because of the large security deployment and costs borne by public authorities. The Hamburg concept states in its official description that the implementation budget also includes security, but opponents are demanding a more precise presentation of what is paid from the organizational budget, what from regular public services, and what would possibly be borne by the federal state.
Environmental arguments are also divided. The city announces climate-responsible and sustainable Games, relying on existing locations, renewable energy sources, public transport and the compact geography of the competition. According to dpa's overview of the debate, the Hamburg concept also mentions the goal that a large share of venues should be within a relatively small radius, which would reduce the need for long transfers. Critics respond that a major international event still produces significant emissions, especially because of the arrivals of spectators, athletes, official delegations and logistics. They further warn that a climate-positive claim requires a detailed and verifiable balance, not just a general intention.
The debate also concerns the International Olympic Committee. Mayor Peter Tschentscher and other supporters emphasize that the rules have changed and that, according to the IOC's newer guidelines, the Games must adapt to the city, not the other way around. Through documents such as Olympic Agenda 2020+5, the IOC has emphasized sustainability, the reduction of unnecessary investments and greater flexibility of bids. Opponents, however, believe that reform language does not remove the fundamental imbalance between the host city and the Olympic system. In their interpretation, the public sector still assumes the greatest reputational and financial risk, while the benefits are not distributed equally.
National competition: Hamburg is not the only German candidate
Hamburg's decision will be only one part of the broader German Olympic story. DOSB states that Berlin, Hamburg, Munich and Rhine-Ruhr are in play, and that the final assessment should take into account international competitiveness, economic sustainability, acceptability and the quality of each concept. According to DOSB, Munich already received residents' support in a referendum in October 2025, with 66.4 percent voting in favor. DOSB has also announced that referendums in the KölnRheinRuhr region and in Kiel in April 2026 brought support for the continuation of Olympic plans. Berlin, according to available information, relies on different forms of political and social involvement, without a referendum based on the Hamburg model.
For Hamburg, that competition is important because even a successful referendum does not guarantee national selection. The city would have to convince DOSB that its concept offers the best combination of urban planning, sports locations, financial feasibility, public support and international recognition. The weaknesses are the political memory of the rejection from 2015, the public's high sensitivity to costs and the fact that some key transport and housing projects still need to be carried out in detail.
Germany has not bid for the Summer Games in stable continuity after several unsuccessful attempts and local resistance. The historical context additionally burdens the year 2036, because it would be the centenary of the Games in Berlin in 1936. DOSB therefore emphasizes that the year does not have to be determined immediately, but that Germany must be ready when a realistic opportunity opens for a European candidate.
What voters will actually decide
Voters in Hamburg are not deciding on the final hosting, but on whether the city may continue along the path of the bid. Still, the political weight of the referendum will be great. If the majority votes against it, Hamburg would probably drop out of the national race and repeat the scenario from 2015, although under different circumstances. If the majority votes in favor, the Senate receives a democratic mandate for further negotiations with DOSB, the federal government and potentially the International Olympic Committee. The debate would then move from the general question "do we want the Games" to more concrete questions of contracts, deadlines, guarantees, risk distribution and cost control.
For the public, trust in the official figures will be decisive. The financial plan presents an optimistic but conditional calculation: 4.8 billion euros for implementation, 4.9 billion euros in revenue, about 100 million euros of possible surplus and another 1.3 billion euros of long-term investments. In favor of the bid is the fact that Hamburg claims it relies on a large share of existing venues, temporary solutions and projects that should remain for the city. Against the bid speaks the experience of numerous major sports events where initial estimates changed, and political promises about limited costs proved difficult to maintain as deadlines approached.
For that reason, the Hamburg referendum is not only a local sports issue. It is a test of attitudes toward major public projects, trust in institutions, readiness for long-term investments and fear of financial risk. In the final stage of the campaign, two messages collide almost directly: the city government claims that the Games are an opportunity for modernization and international visibility, while opponents warn that it is an expensive bet with an uncertain outcome. The final answer will be given by voters on May 31, 2026, and their result will affect not only Hamburg but also the entire German plan for the return of the Olympic and Paralympic Games.
Sources:
- City of Hamburg / Senate – official information on the Olympic concept, the referendum and planned effects on transport, green spaces and city infrastructure (link)
- City of Hamburg / Authority for Home Affairs and Sport – financial framework of the bid, cost estimates, revenues and investment budget (link)
- City of Hamburg / official Olympia in Hamburg website – questions and answers on costs, infrastructure, sustainability and national support (link)
- German Olympic Sports Confederation, DOSB – information on the national bidding procedure and candidate cities for the Games in 2036, 2040 or 2044 (link)
- Statistik Nord – final results of the Hamburg Olympic referendum from 2015 (link)
- Welt / dpa – overview of arguments for and against Hamburg's bid, including criticism of security, social and climate risks (link)