The Istanbul Metropolitan Municipality's digital planning portal quietly updated its guidance documents last month, flagging that dozens of property and zoning files had been submitted with repeated or substituted photographs — images used interchangeably across separate applications in districts as far apart as Kadıköy and Başakşehir. The disclosure, circulated internally among urban planners and architectural firms before leaking to professional associations, has prompted a sharper public conversation about the integrity of Istanbul's official visual records.
The timing matters. Turkey's municipalities are in the middle of a major push to digitise post-earthquake compliance documentation, a process accelerated since the February 2023 Kahramanmaraş disaster killed more than 50,000 people across the country. In Istanbul, where seismic risk assessments now underpin billions of liras' worth of urban renewal contracts, the accuracy of submitted imagery is not a bureaucratic footnote — it directly shapes which buildings get flagged for demolition, which receive reinforcement funding, and which developers win public tenders.
What Specialists Are Saying
Academics at Istanbul Technical University's Faculty of Architecture, known locally as İTÜ, have been raising procedural concerns about image verification in planning submissions since at least 2024. Faculty members working on the university's urban resilience program have argued in professional journals that municipalities lack standardised metadata checks — tools that would automatically detect whether a photograph submitted for a building in Fikirtepe is identical to one filed six months earlier for a structure in Gaziosmanpaşa.
The Chamber of Turkish Architects, the TMMOB Mimarlar Odası, whose Istanbul branch operates out of offices near Taksim Square, published a position paper earlier this year calling for a centralised image registry tied to unique GPS coordinates and submission timestamps. The chamber's Istanbul branch has not specified how many files it believes are affected, but described the scale of the problem as significant enough to warrant legislative attention in Ankara.
Professionals in the heritage preservation sector have raised parallel concerns. The Galata and Balat neighbourhoods — both listed under UNESCO's tentative World Heritage framework for Istanbul's historic peninsula — have been subject to frequent renovation permit applications over the past three years. Preservation specialists working with the Fatih Municipality say that photographic documentation submitted with those applications has proven inconsistent, with some images circulating across multiple unrelated files.
Pressure Mounts on Municipal Systems
The Istanbul Metropolitan Municipality, led by CHP mayor Ekrem İmamoğlu, has not issued a formal public statement on the duplicate imagery findings, but planning directorate staff confirmed to professional contacts in June that an internal audit was underway. The audit is understood to cover submissions received between January 2023 and June 2026 — a period that coincides almost exactly with the post-earthquake urban renewal surge.
Digital governance researchers point to a structural problem: Istanbul's planning system still relies on PDF bundles submitted by private applicants rather than direct integration with cadastral databases. A 2025 report by the Istanbul Policy Center at Sabancı University noted that fewer than 40 percent of Turkey's municipal planning portals had implemented any form of automated document authentication as of late 2024. That figure, drawn from the center's municipal digitisation index, underlines how wide the verification gap remains.
For residents in areas like Zeytinburnu and Bağcılar — two districts with high concentrations of buildings flagged as earthquake-vulnerable — the practical stakes are immediate. Families waiting on seismic retrofit assessments have no reliable way to know whether the photographs in their building's file accurately reflect the structure inspectors say they have reviewed.
The next inflection point is September, when Istanbul's metropolitan planning commission is scheduled to present revised submission standards to the city council. Specialists at İTÜ and the Mimarlar Odası say they expect to submit joint technical recommendations before that deadline. Whether the council adopts mandatory image-authentication protocols — or leaves the process to the discretion of individual district municipalities — will determine how much of Istanbul's building documentation can actually be trusted.