Idealista or student booking platforms? How to choose where to find a flat in Spain (2026)

You're coming to study in Spain and you have two routes: listing portals such as Idealista or Fotocasa, with thousands of flats and rooms, or booking platforms for students that promise “verified” listings. Which one is safer? And what does “verified” really mean in October 2026? Here's a practical guide, based on the official rules.

In short: a portal gives you more choice and direct contact with the landlord; a platform lets you book remotely with its own checks and, sometimes, payment protection. Neither one makes a property “legal”. And Spain's Supreme Court annulled the national short-term rental registry in 2026: that number is no longer mandatory.

Two ways to search: listing portal or booking platform

Listing portals (Idealista, Fotocasa…)

They're shop windows: a private landlord or agency posts the ad, you get in touch, view the place and sign directly with whoever is renting it out.

• Pros: huge choice, prices you can compare, alerts and face-to-face contact.

• Keep in mind: payment and contract usually happen outside the portal, so checking the property and the landlord is mostly up to you. View it in person or on a live video call.

Booking platforms for students

You book online and pay through the platform, which acts as an intermediary.

• Pros: you can secure a place before you arrive, and many have a protection policy: for example, holding your first payment until shortly after you move in, or refunding it if the place doesn't match the listing.

• Keep in mind: there's usually a service fee, there's less choice, and each platform sets its own cancellation and refund terms. Read them before you pay.

More options (halls of residence, coliving) in our guide to finding student accommodation.

“Verified” is not the same as “registered”

• Platform verification: the internal checks each company runs (landlord identity, visits or photos, reviews) and its booking guarantees. It's a contractual commitment from that platform, with whatever scope its policy sets. It is not an official seal or public certification.

• Legal registration: an entry with a public authority. And this is where something important changed.

What happened to the national rental registry

Royal Decree 1312/2024 created a national Single Rental Registry (Registro Único de Arrendamientos) and, from 1 July 2025, required a registration number to advertise short-term rentals (including seasonal ones) on online platforms.

In judgment 620/2026 of 19 May (published in the BOE, Spain's official gazette, on 8 June 2026), the Supreme Court annulled that registration procedure and the obligation to obtain the number to advertise on platforms. It held that the State lacks the power to create a registry that overlaps with the regional ones. What still stands is the Digital Single Rental Window (Ventanilla Única Digital de Arrendamientos) and the platforms' duty to share data, in line with EU Regulation 2024/1028.

What it means for you: in October 2026 there is no national number you should demand before renting a room or a seasonal flat. If a listing still shows a number from that registry, it's not a bad sign, but it's not a guarantee either.

What a listing may show

• Tourist flats: they need a number from their regional tourism registry, and a tourist let can't exceed 31 days (art. 5.e of the Urban Leases Act, LAU). If someone offers you a “tourist flat” for the whole semester, ask for a seasonal rental contract instead.

• Transparency data: Royal Decree-law 29/2026 requires rental ads to include, where applicable, the property's ID code, the rent reference index in stressed housing areas and whether the landlord is a large-scale owner (art. 20). It's a decree-law still awaiting parliamentary approval, so check its status.

• Local rules: some regions and city councils have their own rules on seasonal and room rentals. Check your region's housing website or your university's accommodation office.

What the law protects, wherever you search

If you sign a residential or seasonal lease covered by the Urban Leases Act (LAU), these rules apply whether you found it on a portal or a platform:

• Agency fees: property management and contract formalisation costs can't be passed on to the tenant “under any concept or name”. Optional services can only be charged if you ask for them in writing, knowing the cost beforehand (art. 20.2).

• Deposit: one month's rent for housing (art. 36.1). In seasonal rentals, any extra guarantee can't exceed one more month, and you can never be required to take out rent-default insurance (art. 36.5).

• Rent in advance: at most one month's rent (art. 17.2).

• Electronic payment and an itemised receipt (art. 17.3 and 17.4): be wary of anyone who only accepts cash or money transfers to third parties.

And a platform's service fee? It depends on what it covers. If in practice it charges for preparing or formalising the lease, it clashes with art. 20.2; if it's a separate, optional service, it should be explained and accepted in writing. Ask for the breakdown and, if in doubt, contact a consumer association.

If you sign a seasonal or room rental, check the contract cause, duration, and deposit/guarantee caps under the LAU in force (and any change Congress confirms on RDL 29/2026).

How to choose for your situation

• You're already in the city (or arriving a few weeks early): a portal gives you more options and better prices. View the place, meet the landlord and sign in writing.

• You're arriving from abroad and can't view it: a platform with payment protection, or a two-to-four-week bridge stay (residence or hostel) while you view places.

• You want a room in a shared flat: ask students who already live in the city what the flat or the neighbourhood is like.

• In every case: a written contract stating the temporary reason (your studies and dates), an inventory and photos on move-in day.

Before you pay anything, go through our checklist on rental scams in Spain.

FAQ

Do I need to ask for the national rental registry number?

Not as a mandatory requirement. The Supreme Court annulled the obligation to obtain that number to advertise on platforms in 2026. Tourist flats still need a regional tourism registration, and some regions or city councils may have their own rules.

Is booking on a platform safer than on Idealista?

Not necessarily. A platform may protect your payment under its own terms; on a portal, safety depends on viewing the place, checking the landlord and not paying without a contract. Scams exist on every channel.

Can I be charged agency fees?

Not in leases covered by the LAU: management and formalisation costs are the landlord's (art. 20.2). Ask in writing what each amount is for.

This article is for information only and is not legal advice. Reviewed on 13 October 2026 against the consolidated LAU, Royal Decree-law 29/2026 and Supreme Court judgment 620/2026 as published in the BOE.

Uniwords doesn't rent out flats: we're a community of international students. You can ask other students in your city how they found their place and check our partners' student deals.