Basilica Cistern Closed - The Power Struggle Over Istanbul Reaches One of the City’s Biggest Attractions
- Martin
- Jun 3
- 5 min read
Updated: Jun 5
The Basilica Cistern, one of Istanbul’s most visited attractions, has been closed following a legal dispute between the Turkish state and Istanbul Metropolitan Municipality. Many see the case as part of the growing political struggle over Turkey’s largest city.
The Basilica Cistern (Yerebatan Sarnıcı), one of Istanbul’s most visited attractions, has been closed to visitors following a lengthy legal dispute between the Turkish state and the Istanbul Metropolitan Municipality (IBB).
If you enjoy the blog, you can support it by buying me a virtual coffee
Officially, the case concerns the ownership of the nearly 1,500-year-old Byzantine cistern. In practice, however, many see it as the latest chapter in the growing conflict between the Turkish government and Istanbul’s opposition-led municipality.
From Neglect to Top Attraction
After Ekrem İmamoğlu and the opposition took control of Istanbul in 2019, the city launched a major restoration of the Basilica Cistern. The project was carried out by İBB Miras, the heritage department that the new municipal administration chose to expand and turn into one of its flagship initiatives.
Within just a few years, İBB Miras became responsible for restoring a wide range of historic buildings, cisterns, city walls, mosques, churches and other heritage sites across Istanbul. The department quickly became one of the most visible symbols of the municipality’s commitment to preserving and promoting the city’s history.
The Basilica Cistern became the crown jewel of this effort.
Following its reopening in 2022, the site rapidly became one of Istanbul’s biggest success stories. The combination of restored Byzantine architecture, modern exhibition design and contemporary art installations turned it into one of the city’s most visited attractions.
For many visitors, it became as essential as Hagia Sophia, Topkapı Palace and the Blue Mosque.
More Than Just a Tourist Attraction
The Basilica Cistern is more than a museum. Revenue generated by the site has played an important role in funding IBB’s heritage and restoration projects throughout Istanbul.
This is one reason why the case has become so controversial. The Basilica Cistern was not simply restored by the municipality - it became one of the most visible symbols of İBB Miras and the opposition’s approach to cultural heritage.
For many opposition supporters, the site stands as a tangible example of what the municipality has achieved since 2019. As a result, the state’s takeover is widely viewed as far more than a simple ownership dispute.
Part of a Larger Political Conflict
The dispute comes at a time when Turkey’s opposition is facing its most serious political crisis in years.
In recent months, the country’s largest opposition party, CHP, has been affected by court cases, political interventions and internal power struggles. Opposition figures describe the developments as a judicial coup against the party, while the government maintains that courts and public institutions are simply enforcing the law.
At the same time, Istanbul’s elected mayor, Ekrem İmamoğlu, remains imprisoned, while several municipal projects and institutions have faced investigations, legal challenges or state intervention.
For many opposition voters, the CHP crisis and the Basilica Cistern dispute are part of the same broader trend. They see a pattern in which courts and state institutions are increasingly used against political opponents, municipalities and organisations outside government control.
Who Gets the Basilica Cistern?
One of the most controversial aspects of the case is the question of who will now control the attraction.
The Basilica Cistern has not been transferred to another municipal institution. Instead, control has been handed to Vakıflar Genel Müdürlüğü, Turkey’s General Directorate of Foundations, which operates under the Ministry of Culture and Tourism.
Authorities argue that the cistern is historically linked to Ottoman charitable foundations and that ownership therefore rightfully belongs to the state.
Critics, however, point out that the transfer follows legislative changes that make it easier for the state to register and take control of historic properties previously managed by municipalities. For the opposition, the Basilica Cistern is therefore not simply a legal property dispute, but another example of control over Istanbul gradually being shifted away from the city’s elected administration.
The Opposition Speaks of Economic Pressure
The dispute comes at a time when relations between the government and Istanbul Metropolitan Municipality are more strained than at any point since the 2019 local elections.
Opposition figures argue that the municipality has faced restrictions on borrowing, legal challenges to municipal projects, withheld funding and the loss of municipal assets.
Viewed in this context, many believe that the Basilica Cistern dispute is not only about cultural heritage or legal ownership, but also about money, political influence and economic control.
When the state takes over one of Istanbul’s most profitable cultural attractions, it inevitably raises a question: Is this really about heritage - or is it about ensuring that the revenue ends up in different hands?
For many government critics, a pattern is becoming increasingly difficult to ignore. Opposition mayors are investigated or imprisoned, CHP’s leadership faces legal challenges, and municipal revenue sources are transferred to state control. For them, the Basilica Cistern is not an isolated case but another step in an increasingly centralised struggle for control over Turkey’s largest city.
Basilica Cistern Closed & What Does This Mean for Visitors?
For visitors to Istanbul, the immediate consequence is simple: the Basilica Cistern is currently closed.
It remains unclear when the site will reopen and under whose administration it will operate in the future.
If you find yourself standing in Sultanahmet facing closed doors at the Basilica Cistern, it is not necessarily the end of your day. Istanbul Metropolitan Municipality is instead recommending a visit to Şerefiye Sarnıcı, also known as the Theodosius Cistern.
Located just a few minutes’ walk away, it is one of Istanbul’s lesser-known Byzantine cisterns. When I last visited, the former light and video show had been removed. However, I understand that smaller concerts are now regularly held within the historic space.
Şerefiye Sarnıcı is smaller than the Basilica Cistern and lacks the famous Medusa heads and endless rows of columns. On the other hand, it is usually far less crowded, making it easier to appreciate how these vast underground reservoirs once functioned beneath Constantinople.
For Istanbul, however, this story is about far more than a tourist attraction. It is also about who controls the city’s heritage, its revenue and the narrative surrounding the restoration projects that have transformed parts of historic Istanbul in recent years.
For many residents, the question is therefore not simply who owns the Basilica Cistern. The question is also who will control Istanbul in the years ahead.
As always, I will continue to follow the story and update this article as new developments emerge.
