How to check a property in Spain
Buyer's guide

How to check a property in Spain before buying?

Legal guide

How to check a property in Spain before buying?

Updated: 2026 Reading time: 6 min

Learn how to verify a property in Spain before buying. Find out what a nota simple is, how to compare the data from the Catastro and the Registro, and what to look out for before signing a contract.

Want to understand the full purchase process? Read our guide on buying a property in Spain step by step to learn about every stage of the transaction.

Why is checking a property in Spain so important?

Buying a property in Spain can be very safe, but only if you thoroughly check what you are actually buying before finalising the transaction. It is not just about the location and the physical condition of the flat or house.

Equally important are:

  • the legal status of the property
  • consistency of the data across the documents
  • any mortgages, embargoes or other charges
  • accuracy of the floor area and description of the property
  • the legality of any alterations

In practice, it is precisely at this stage that things which are not visible in the listing come to light. That is why a buyer should not rely solely on the photos, the description and the seller's assurances.

Where to start when verifying a property?

It is best to start with a basic set of information:

  • who owns the property
  • the exact address and description of the property
  • whether the property is recorded in the Registro de la Propiedad
  • whether the data matches the Catastro
  • whether there are any charges or restrictions

This is exactly where the nota simple comes in, an informational document from the property register. It is one of the most important documents when checking a flat or house before buying.

Useful article: Discover buying a property in Spain step by step - every stage of the transaction.

What is a nota simple and what can you check in it?

A nota simple is an informational document from the Registro de la Propiedad that lets you check the basic details of a property. Registradores explain that the nota simple and a registry certification are different documents, but the nota simple is one of the most commonly used sources of information when analysing a property.

In a nota simple you can check, among other things:

  • who is listed as the owner
  • the description of the property
  • whether any mortgages are registered
  • whether there are embargoes or other charges
  • whether there are any legal restrictions

The owner of the property

This is the absolute basics. You must confirm whether the person selling has the right to sell the property.

Mortgages, embargoes and other charges

The nota simple may show information about mortgages, seizures or other rights held by third parties. This is exactly why the nota simple is so important before buying.

Tip: Find out more about the nota simple and where to obtain it on the Registradores website.

Why do you need to compare the data from the Catastro and the Registro?

A very important step is to compare the data from the Catastro and the Registro de la Propiedad. The Catastro and the Registro are not the same thing. The Catastro deals with the property as an object and its administrative description, while the Registro deals with the rights to the property.

The Catastro stresses that coordination between the Catastro and the Registro increases legal certainty, because once the cadastral graphic representation has been incorporated into a registered property, the data on the location, boundaries and area of that representation is presumed to be true.

Differences between the Catastro and the Registro

In practice, discrepancies can arise between:

  • the area
  • the boundaries
  • the location
  • the description of the property

If the data does not match, this has to be clarified before the purchase, not after the notarial deed.

More information: Learn about Catastro-Registro coordination and what it means for the boundaries, location and area of a property.

How to check the floor area, boundaries and legal status?

When verifying a property, it is worth checking whether:

  • the floor area given in the listing matches the documents
  • the boundaries of the property are correctly described
  • the property is coordinated with the Catastro
  • there is no ambiguity in the description of the unit or plot

The Catastro explains that the information provided by the Registro de la Propiedad indicates whether a given property is coordinated with the Catastro and since when. This coordination is specifically intended to increase the security of property transactions.

This is particularly important for houses, plots and properties that may have been extended or altered.

Which documents are worth verifying before buying?

Before buying, it is worth checking not only the register itself, but also the documentation relating to the property. Depending on the type of property and the transaction, this may include:

  • the nota simple
  • the data from the Catastro
  • the owner's identity document
  • documentation relating to any alterations
  • information about fees and the state of payments
  • the energy performance certificate

Energy performance certificate

Spain has regulations on the energy certification of buildings. The BOE states that the owner or developer is responsible for commissioning the energy performance certificate when it is required, and this document must be available when the property is sold or rented.

It is not the most important document from the point of view of the legal status itself, but it is definitely worth checking whether it is available and up to date.

Useful article: Discover the costs of buying a property in Spain - all the taxes and fees.

What else should you watch out for before signing a contract?

Beyond the documents, it is also worth paying attention to practical matters:

  • whether the property has any visible discrepancies compared with the description
  • whether the seller is pushing you to sign the reservation too quickly
  • whether the price seems suspiciously low without explanation
  • whether all arrangements are confirmed in writing

Why is it worth working with a lawyer and a trusted agency?

The safest model is one in which the property is checked not only "by eye", but also formally. That is why it is worth carrying out a purchase in Spain with the help of a trusted estate agency and a lawyer who can analyse the documents, the legal status and any risks.

At Tripinvest ES we work with English-speaking lawyers who can guide the client through all the most important formalities involved in buying a property in Spain. This makes the whole process simpler, more transparent and safer for the buyer - from checking the documents, through verifying the legal status, to completing the purchase.

Read more: Discover property in Spain for Poles - a comprehensive buyer's guide.

Summary

How do you check a property in Spain? Above all, you have to start with the documents, not with emotions. The nota simple, the data from the Catastro, comparing the information from the register and verifying any charges are of key importance. It is precisely these elements that help you make sure the property matches the description and that buying it does not come with a hidden problem. Official sources emphasise the importance of the Registro de la Propiedad and of coordination with the Catastro for the security of property transactions.

If you are planning to buy a property in Spain, the verification stage should not be skipped. Very often it is precisely this stage that decides whether the purchase will be truly safe. A well-conducted process, supported by a trusted agency and English-speaking lawyers, gives the client far greater peace of mind and confidence at every stage.

Nota simple required Comparison with the Catastro Lawyer recommended

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Sources / External links

Below are the official sources from which the information in this guide is drawn:

Nota simple - what it is and where to obtain it

Registradores Official website

Catastro-Registro coordination

Catastro Official website

Obligation to hold an energy performance certificate

BOE Official Gazette

Frequently asked questions

How do you check the legal status of a property in Spain?
It is best to start by obtaining a nota simple from the Registro de la Propiedad and checking who the owner is and whether there are any charges on the property.
Do you need to check the Catastro before buying a property?
Yes, because comparing the data from the Catastro and the Registro helps you make sure that the area, location and description of the property are consistent.
What can you find in a nota simple?
Among other things, the owner's details, the description of the property, mortgages, embargoes and other charges.
Is the energy performance certificate important when buying?
Yes, because regulations on energy certification apply when a property is sold, and it is worth checking whether the document is available.

Want to buy a property in Spain safely?

Get in touch with Tripinvest ES - we work with English-speaking lawyers and will help you go through the whole process step by step.

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