'My landlord listed my apartment twice — I lost my home to an algorithm': Barcelona renters speak out on duplicate listings

At least a dozen residents in the Gràcia and Sant Pere neighbourhoods filed formal complaints with the Ajuntament de Barcelona between January and May 2026, each describing a variation of the same ordeal: their rented flat had been listed simultaneously on two or more digital platforms — Airbnb, Booking.com and domestic rival Idealista among them — creating overlapping reservations, disputed tenancy rights and, in several cases, forced departures from their homes.

The practice, known informally in housing advocacy circles as duplicate image replacement, involves landlords or intermediary agencies uploading the same property photographs and floor plans across platforms, sometimes under different names or registration numbers, to circumvent Barcelona's tightening controls on tourist apartments. For long-term tenants, the consequences can be sudden and disorienting.

A Crisis Arriving on Two Fronts

Barcelona has been enforcing its tourist apartment cap since Mayor Jaume Collboni announced in June 2024 that the city would not renew any of the approximately 10,100 existing short-term rental licences when they expire in November 2028. That decision accelerated pressure on landlords looking to extract tourist income before the window closes. Housing advocates say it also pushed some operators toward opaque digital tactics — including duplicate listings — that are harder for municipal inspectors to detect than a single, clearly labelled Airbnb property.

The Sindicat de Llogateres, the Catalan tenants' union based on Carrer de la Diputació in the Eixample, has been tracking the duplicate listing problem since late 2024. The organisation says the complaints cluster around three postal districts: 08012 (Gràcia), 08003 (Sant Pere, Santa Caterina i la Ribera) and 08004 (Esquerra de l'Eixample). Each is close to high-footfall tourist corridors — the Passeig de Gràcia axis, the Born and the Mercat de Sant Antoni — making them commercially attractive for short lets.

Several residents who spoke to The Daily Barcelona described discovering the situation only after receiving messages through a property platform addressed to guests, not to themselves. One woman who has rented a flat on Carrer del Torrent de l'Olla for four years said she found photographs of her living room — including personal items she recognised — on a Booking.com listing priced at €180 a night. She contacted the Oficina d'Habitatge de Gràcia, the district's dedicated housing office on Carrer de Francisco Giner, and was told the flat carried a tourist licence registration number that differed from the one on her rental contract. The administrative tangle took eleven weeks to resolve.

What the Data Shows — and What Comes Next

Barcelona's Observatori Metropolità de l'Habitatge reported in its 2025 annual summary that average monthly rents in the city's central districts reached €1,247 for a 60-square-metre flat, a figure 34 percent higher than the 2019 pre-pandemic baseline. Advocates argue that duplicate listing schemes both reflect and worsen that pressure, because landlords who successfully convert even a portion of their portfolio to tourist use can generate returns that dwarf regulated rental income.

The Ajuntament's Departament de Llicències i Inspecció has indicated it is developing an automated cross-referencing tool that would flag properties appearing under multiple identifiers on major platforms. The programme, still unnamed publicly, is expected to enter a pilot phase in the Sant Martí district before any city-wide rollout. Until it is operational, residents are being advised to use the Habitatge en Línia portal — accessible through the city's official website — to verify whether their address carries an active tourist licence, and to report discrepancies to the nearest Oficina d'Habitatge in person.

For tenants who discover their home has been listed without their knowledge, the Sindicat de Llogateres offers free legal guidance sessions every Tuesday at its Carrer de la Diputació office. The union recommends documenting the listing with screenshots, noting the platform's internal reference number, and filing simultaneously with both the Ajuntament and the Agència Catalana de Consum, which has jurisdiction over deceptive commercial practices under Catalan consumer law. Acting quickly matters: in three of the cases reviewed by this newspaper, landlords removed the duplicate listings within days of being notified — making evidence harder to preserve.