Barcelona Cracks Down on Fake Property Photos in Rental Listings

Barcelona's housing authorities have identified a growing enforcement headache embedded inside the city's short-term rental crackdown: duplicate and manipulated property images being recycled across multiple listings on platforms including Airbnb and Booking.com to disguise illegal or duplicate advertisements. The practice, known in regulatory circles as duplicate image replacement, involves reusing photographs of a single apartment, sometimes with minor digital edits, to register what appear to be separate, legitimate properties across different platforms or under different host identities.

The timing matters. Mayor Jaume Collboni's administration has been pushing one of the most aggressive short-term rental restriction programmes in Europe since 2023, refusing to renew the roughly 10,101 tourist apartment licences that were set to expire, and pledging to convert those units back to residential use. Enforcement, though, has repeatedly run into the problem of digital obfuscation, and duplicate imagery is now squarely on the radar of city technicians and housing lawyers alike.

What the Experts Are Saying

Specialists in housing-platform compliance say the issue is more widespread than official figures typically capture, because detection requires cross-referencing image metadata across databases that platforms do not always share with municipal authorities. Digital forensics consultancies working with European city governments have pointed to reverse-image search tools and perceptual hashing algorithms, techniques that identify near-identical images even after cropping or colour filtering, as the most promising detection methods. Barcelona's Agència de l'Habitatge de Catalunya, the regional body that oversees rental licensing under the Generalitat, has discussed deploying automated image-scanning tools as part of a broader push to validate licence applications, though no formal rollout date has been confirmed publicly.

Legal experts specialising in urban housing law note that the practice sits in a regulatory grey zone. Submitting duplicate images to obtain multiple licences could, in principle, constitute fraud under Spain's Ley de Arrendamientos Urbanos, but prosecutions have been rare because proving intent requires establishing that the same operator controls multiple accounts, a task that demands cooperation from platforms reluctant to hand over user data without a court order.

The Sindicat de Llogateres, the Barcelona-based tenants' union that has been one of the most vocal organisations pushing for stricter rental rules along Carrer de la Diputació and across the Eixample district, has raised the duplicate-image problem in its communications with the Ajuntament de Barcelona, arguing that the city's enforcement resources are being stretched by a category of fraud that is both low-cost for operators and difficult to prosecute. The union has called for a mandatory image-verification step during the licence application process, to be administered by the Consorci d'Habitatge de Barcelona, the joint city-Generalitat body that processes those applications.

The Scale of the Problem and What Comes Next

Barcelona had approximately 9,600 active tourist apartment licences as of late 2025, according to figures cited in municipal planning documents. Housing researchers at the Universitat Pompeu Fabra's urban studies group have suggested that a non-trivial share of listings operating without valid licences rely on some form of digital misrepresentation, including reused images, to avoid detection during spot-check audits. Exact percentages remain contested and no definitive city-wide audit has been published.

On the platform side, both Airbnb and Booking.com have indicated in European regulatory submissions that they use automated tools to flag duplicate content, though critics argue those tools are calibrated for copyright protection rather than licence fraud, which requires a different kind of detection logic.

The practical path forward, according to housing law practitioners and digital compliance specialists, runs through three steps: mandatory image hashing at the point of licence application with the Consorci d'Habitatge, formal data-sharing agreements between the Ajuntament and major platforms under Spain's transposition of the EU's Digital Services Act, and dedicated inspection capacity in high-density tourist neighbourhoods like the Gòtic quarter and Sant Pere, Santa Caterina i la Ribera. Without those three elements working in combination, officials acknowledge, the problem of duplicate images will continue to outpace the tools available to catch it.