How Istanbul's Building Stock Ended Up Full of Duplicate Registry Images — and Why It Matters Now

Walk into the Kadıköy land registry office on Söğütlüçeşme Caddesi on any given Tuesday and you will find clerks still sorting through physical dossiers that contain the same stock photograph of a generic four-storey apartment block — pasted onto records for buildings that look nothing like it. The practice, which began in earnest during the rapid urbanisation of the 1980s and 1990s, was a pragmatic fix: surveyors were overwhelmed, camera equipment was scarce, and filling a blank field with a placeholder image cleared a bureaucratic bottleneck. Decades later, those placeholder images have multiplied across the national TAKBIS cadastral database, and officials are only now reckoning with the scale of the problem.

The timing is not incidental. The February 2023 Kahramanmaraş earthquakes killed more than 50,000 people across southern Turkey and exposed catastrophic weaknesses in building inspection records. Istanbul, sitting atop the North Anatolian Fault, accelerated its own seismic risk audit in the months that followed. What investigators from the Istanbul Metropolitan Municipality and the Directorate General of Land Registry and Cadastre (TKGM) found inside the TAKBIS system was a documentation landscape riddled with images that could not confirm which structure was which — making it functionally impossible to cross-reference a building's physical condition against its legal identity without a physical site visit.

How the Shortcut Became Systemic

The roots of the problem stretch back to 1985, when Turkey launched its first nationwide cadastral modernisation drive to absorb the enormous volume of informal construction that had erupted around Istanbul during the gecekondu era. Surveyors working across Gaziosmanpaşa, Bağcılar, and the then-rapidly expanding districts of Ümraniye on the Asian side were given quotas to process hundreds of parcels per month. When a building photograph was unavailable — owner absent, light poor, camera broken — a default image from a small library of generic building types was inserted. The TKGM confirmed as a matter of policy in a 2021 agency report that image fields were mandatory for file completion, but the regulation contained no verification mechanism to ensure the image matched the specific address.

Private insurers noticed the downstream effects first. After the 2023 earthquake, several major Turkish insurance companies processing DASK compulsory earthquake insurance claims in Hatay and Kahramanmaraş found that the cadastral photographs on file bore no resemblance to the destroyed properties. DASK — the Turkish Catastrophe Insurance Pool — has covered more than 11 million residential policies nationwide, but the image discrepancies complicated rapid loss assessment in the disaster zone. Istanbul's risk profile made its own version of the same problem suddenly urgent: the city contains an estimated 90,000 buildings classified as high-risk under the Urban Transformation Law of 2012, and a meaningful share of those buildings have never had their cadastral image field updated since original registration.

The Push to Replace Placeholder Images

The Istanbul Metropolitan Municipality launched a pilot image replacement programme in Fatih district in the spring of 2025, deploying mobile survey teams equipped with GPS-tagged cameras to re-photograph every structure on the district's approximately 14,000 registered parcels. Fatih was chosen partly because of its dense, historic building stock — many structures in the area around the Theodosian Walls predate any electronic record-keeping — and partly because it sits inside the highest seismic hazard zone on the municipality's own risk maps. The Fatih pilot was due to complete its first-pass photography by the end of 2025, with TKGM responsible for uploading verified images into TAKBIS.

The practical consequences of getting this right extend well beyond administrative tidiness. Under current Urban Transformation Law provisions, a building owner seeking government-backed demolition-and-rebuild financing must present a clean cadastral record, including a verified image, before the İller Bankası loan process can begin. Buildings flagged with placeholder images are, in practice, stuck in a documentation limbo that can delay retrofitting by months. For residents of at-risk structures in Zeytinburnu or Avcılar — two districts that seismologists consistently identify as highly exposed — that delay is not abstract.

TKGM has said publicly it is working toward a nationwide image verification deadline, though no binding completion date has been attached to a funded programme as of July 2026. For Istanbul property owners with buildings registered before 2000, the immediate practical step is to request a parcel inquiry at the nearest land registry directorate and confirm whether the image on file matches the current structure. If it does not, a formal correction application — a tapu tashihi request — starts the process of replacing the placeholder with a geotagged, date-stamped photograph that can actually anchor a building to its legal identity.