How Istanbul's Historic Districts Ended Up With the Wrong Image of Themselves

Walk into the Istanbul Metropolitan Municipality's online planning portal and search for Balat, the crumbling-elegant neighbourhood on the Golden Horn that has become one of the city's most photographed corners. There is a reasonable chance the image that populates the record is not Balat at all — it may be a stock photograph of Karaköy, or a rooftop shot of Beyoğlu, or something that appears to have been taken in a coastal Aegean town with no connection to the Fatih district whatsoever. The problem has a name inside municipal IT circles: duplicate image replacement, and the question of how Istanbul arrived at this point is not a simple one.

The issue crystallised over the past eighteen months as the city's digital infrastructure underwent a contested overhaul following the broader administrative reforms pushed through after the 2023 Kahramanmaraş earthquakes, which put every Turkish municipality under pressure to modernise their disaster-preparedness and urban-data systems simultaneously. Istanbul, managing a metropolitan population that the Turkish Statistical Institute put at roughly 15.6 million as of 2024, had to migrate enormous volumes of legacy data — planning records, heritage classifications, neighbourhood boundary files, tourism assets — into new unified platforms. That migration, executed under extreme time pressure, is where the images went wrong.

A Problem That Predates the Migration

The roots go back further than 2023. Istanbul's municipal image archive had been built piecemeal across at least three separate administrations, each using different cataloguing standards. The Istanbul Metropolitan Municipality's directorate responsible for digital heritage assets, the Directorate of Urban Transformation, and BIMTAS — the municipality's information-technology subsidiary — each maintained separate repositories. When the CHP administration under Ekrem İmamoğlu took over in 2019, it inherited three incompatible systems with overlapping file names and no unified metadata standard. A photograph of the Süleymaniye Mosque could be saved as "sultanahmet_01.jpg" in one database and correctly labelled in another, with no automated bridge between them.

The result, as digital asset managers began to discover during the 2024-2025 migration window, was that automated deduplication tools — software designed to eliminate redundant files — could not reliably distinguish between a duplicate and a mislabelled original. In trying to remove clutter, the tools sometimes deleted the correct image and kept the wrong one. Kapalıçarşı, the Grand Bazaar, ended up represented in several planning subfiles by a photograph of a shopping arcade in Şişli. The Galata Tower record in one sub-portal was illustrated for several months by an image of a telecommunications mast in Ümraniye.

Why It Matters Beyond Aesthetics

This is not merely an embarrassment for the tourism website. Istanbul's heritage preservation framework, anchored by the 2005 UNESCO World Heritage Site management plan covering the Historic Areas of Istanbul, requires that planning applications referencing protected zones be accompanied by accurate visual documentation. A mismatched image in a formal planning record is not automatically invalidating, but it creates grounds for challenge, delays approvals, and — according to the management plan documentation itself — can complicate UNESCO's periodic review process, the next cycle of which is scheduled for 2027.

For the tourism sector the stakes are commercial. The Istanbul Convention and Visitors Bureau reported in its 2025 annual summary that the city received approximately 20.2 million foreign visitors in 2024. Those visitors are marketed to through image-heavy digital campaigns managed partly through municipal content systems. An incorrectly tagged photograph does not cost a booking directly, but it erodes the reliability of the metadata infrastructure that underpins targeted digital advertising — a problem that becomes expensive at scale.

The municipality has assigned BIMTAS a corrective audit running through the end of 2026, with a reported target of verifying and retagging the 40,000 most-accessed images across all municipal portals. The Fatih and Beyoğlu districts, which together contain the bulk of the UNESCO-listed zones, are scheduled to be completed first. Heritage advocacy organisations working along the Golden Horn — including groups active in the Fener and Balat neighbourhoods — have been invited to cross-check images against their own on-the-ground photographic records. Whether the 2026 deadline holds will depend substantially on whether the three legacy systems can finally be collapsed into one, a technical ambition that has already slipped twice since 2021.