Tel Aviv's Municipal Archives Are Drowning in Duplicate Images — and the Numbers Show How Bad It Got

Tel Aviv's municipal planning department is sitting on a problem measured in terabytes. An internal review completed in June 2026 found that duplicate images — scanned building plans, site photographs and architectural drawings stored more than once across separate databases — account for roughly 34 percent of all visual assets held by the Tel Aviv-Yafo Municipality's digital archive system. The review covered files dating back to 2011, the year the city first migrated paper records into its central GIS platform.

The timing matters. Tel Aviv is mid-way through a major rezoning push along the Ayalon corridor and in the Lev HaIr district, where hundreds of new development applications are moving through the planning pipeline simultaneously. Bureaucratic drag caused by bloated databases is no longer an abstract IT headache — it is slowing down permit approvals at a moment when the city's construction sector cannot afford the delay.

What the Numbers Actually Look Like

The June audit, conducted by the municipality's Information and Technology Division in partnership with the Tel Aviv Digital Transformation Unit based on Kaplan Street, catalogued approximately 2.1 million image files across the planning system. Of those, an estimated 714,000 files were identified as exact or near-exact duplicates — the same scan uploaded at different stages of the approval process, by different clerks, using different file names. Storage costs for the archive run to roughly 480,000 shekels per year, and the IT division estimates that eliminating confirmed duplicates could reduce that figure by between 25 and 30 percent within 18 months.

The problem compounds quickly in high-volume neighbourhoods. The Florentin district, which saw 312 new planning applications filed in 2025 alone according to municipal planning records, generates a disproportionate share of duplicate entries. Each application can require up to 40 separate image attachments — facade photographs, existing structure surveys, shadow diagrams — and the system does not currently flag when an identical file is submitted more than once. In the Neve Tzedek area, where heritage preservation requirements mean applicants must supply additional photographic documentation, duplication rates in sampled files ran as high as 41 percent.

The Tel Aviv Digital Transformation Unit has been piloting an automated deduplication tool since March 2026, testing it on a subset of roughly 60,000 files pulled from the Old North neighbourhood planning folder. The tool uses perceptual hashing — a technique that identifies visually similar images even when file names differ — and cleared 18,400 confirmed duplicates from that sample set in under 72 hours of processing time. That is a local proof-of-concept, not a system-wide solution, and the municipality has not yet committed public funding for a full rollout.

What Happens Next for Planners and Applicants

For architects and developers submitting applications through the city's Mavat national planning portal, the practical advice coming from planning offices in the municipality's HaKirya complex is straightforward: submit one version of each photograph, clearly labelled by date and site address, and avoid reattaching images from previous application rounds. The IT Division is expected to publish updated file-submission guidelines by September 2026, ahead of the autumn planning cycle when application volumes historically spike.

The broader digital overhaul is not cheap. Comparable deduplication projects undertaken by European municipalities — including a 2023 programme by the city of Amsterdam — have run into the hundreds of thousands of euros for full deployment across legacy systems. Tel Aviv's IT budget for the 2026 fiscal year is set at 74 million shekels according to the municipality's published budget documents, and the Digital Transformation Unit has requested a dedicated allocation specifically for archive remediation in the 2027 budget proposal currently under review.

Without a system-wide fix, the 34 percent duplication rate is not static. Every new application filed adds fresh copies of documents already in the system. At the current rate of filings — the city processed more than 4,800 planning applications in 2025 — the duplicate backlog grows by an estimated 170,000 files per year. The audit made the scope of the problem visible. Solving it will require budget decisions, not just better software.