'My Photos Were Replaced and Nobody Told Me': Berlin Residents Speak Out on Duplicate Image Removal

Dozens of Berlin tenants and small landlords say they discovered their property and profile photographs had been silently swapped out or deleted on housing platforms over the past three months, as automated duplicate-image-detection systems rolled out across several major listing services simultaneously. The replacements ranged from stock photography to completely blank placeholders — with no notification sent to the account holders.

The timing matters. Berlin's housing market is running at near-record pressure. Average re-let rents in Mitte and Friedrichshain-Kreuzberg crossed €22 per square metre in early 2026, according to figures published by the city's IBB Wohnungsmarktbericht in April. A listing without a recognisable, accurate photo can cost a landlord viewings or, for a tenant subletting a room during a work posting, their entire income from the arrangement. When images vanish without warning, the practical consequences hit immediately.

Residents in Neukölln and Prenzlauer Berg have been among the loudest critics. At a tenant advice session run by Mieterverein Berlin at their Spichernstraße office on 28 June, staff fielded at least eleven separate complaints about missing listing images in a single evening — an unusual cluster, according to one advice-session summary circulated to members. The Kreuzberg-based digital rights group Digitalcourage Berlin chapter has also begun collecting written accounts from affected users, citing concerns about algorithmic transparency and the lack of any appeals process.

What Is Actually Happening to the Images

The technical mechanism is not exotic. Platforms use perceptual hashing — a process that generates a fingerprint from an image's visual content — to flag near-identical photographs. When two images hash closely enough, the system flags one as a duplicate and either removes it or substitutes a cached version. The problem arises when the algorithm treats legitimately similar images — say, two different apartments with white walls and IKEA furniture on Kastanienallee — as identical and deletes one owner's original photographs entirely.

WG-Gesucht, one of the most widely used shared-flat portals in Germany, confirmed in a platform notice dated 17 June 2026 that it had updated its image-management system. The notice did not specify how many listings were affected or commit to a restoration process. Immoscout24, which operates a separate deduplication layer, has not published equivalent documentation as of today's date.

For members of Berlin's large Turkish-German community, who are disproportionately represented in the informal subletting market in Wedding and northern Neukölln, the issue carries an additional layer of frustration. Several people attending a community meeting at the Türkischer Bund Berlin-Brandenburg offices on Kottbusser Damm last month described spending hours re-uploading images only to find them removed again within days, with no error message explaining why. The cycle repeats because the underlying hash collision — the root cause — is never resolved.

What Affected Users Can Do Right Now

Digital rights advocates recommend three immediate steps. First, download a local copy of every listing image before uploading, and record the upload date. Second, convert images to a slightly different file format or crop them by a few pixels before re-uploading — this changes the perceptual hash enough to bypass most basic deduplication filters without altering the visual content. Third, file a formal objection in writing with the platform under Article 17 of the EU's General Data Protection Regulation, which gives users the right to contest automated decisions affecting their data.

Mieterverein Berlin is planning a workshop specifically on platform disputes for 19 July at its Tempelhof advice centre on Kaiserin-Augusta-Straße. Registration opens via their website on Monday. The Verbraucherzentrale Berlin, which handled more than 4,200 digital-services complaints in 2025, has added a dedicated intake category for algorithmic content removal starting this month.

The SPD-led Senate has not yet commented publicly on whether the city's planned update to its Wohnraumschutzgesetz — the housing protection law under revision since March — will include any provision covering automated content moderation on rental platforms. Housing committee members are scheduled to meet on 9 July, and tenant advocates say they intend to raise the issue directly.