New rules governing rental property adverts have come into force across Spain.
Royal Decree-law 29/2026, approved on October 6, introduces stricter transparency requirements for anyone advertising a home for rent.
The measures have applied since October 8 and affect private landlords as well as professional property owners and letting businesses.
Under the new rules, adverts must not omit or distort information in a way that could mislead prospective tenants about either the property or the conditions of the rental agreement.
The legislation also establishes specific details that must appear in adverts under certain circumstances.
Reference rental price
If a property is located within a ‘stressed residential market’, the advert must include the applicable reference rental price index.
These are areas where rental costs have risen to levels that place significant financial pressure on local households.
The reference price can be checked using the Spanish government’s online rental-price index.
Legal rent limits
Where a legal cap applies to a property, the advertisement must clearly state the maximum rent that can be charged.
It must also identify the legislation and criteria used to calculate that limit.
One relevant factor may be the rent charged under the property’s previous permanent rental contract, if one existed during the preceding five years.
This requirement is particularly relevant in stressed housing areas, where landlords can face restrictions on the amount charged under a new tenancy.
Tourist-rental registration numbers
Where applicable, advertisements must include the registration number or identifying code assigned to the property.
This includes the alphanumeric registration numbers used for tourist and short-term rental accommodation.
Large-landlord status
An owner must also disclose whether they legally qualify as a gran tenedor, or large landlord.
The precise definition can vary depending on the legislation and location concerned, but it generally applies to owners with substantial residential property portfolios.
They will not have to state exactly how many homes they own or publish personal information in the advertisement.
Rules apply to private landlords
The decree effectively extends obligations already imposed on property professionals to private individuals advertising homes for rent.
Previous consumer legislation principally regulated relationships between consumers and businesses.
The new measure means similar disclosure requirements now apply to all landlords, regardless of whether renting property is their profession.
Property portals do not ordinarily have access to information such as a landlord’s full portfolio or the rent charged under a previous contract.
It will therefore be the owner’s responsibility to provide accurate information when placing the advertisement.
Landlords should verify whether their property is in a stressed housing area, whether a rent cap applies and what information must be disclosed before publishing or renewing a listing.
