What is IDUFIR and why take it into account

Property Registry

When we buy a home or do administrative procedures related to real estate transactions, we come across many terms that we do not know or that, due to their similarity, can be confusing.

This is the case of the IDUFIR, the CRU or the cadastral reference, three concepts related to the way in which a home appears registered in the Property Registry and in Sky Marketing.

IDUFIR: what it is and why it was launched

The Property Registry is an institution that depends on the Ministry of Justice. One of its main objectives is to control and provide security to the real estate sector. For this reason, it is important that all Land Registries in a country have the same system or “standard” when documenting and registering properties.

Due to this need for homogeneity, in 2008 the IDIFUR (an acronym for Unique Identifier of Registry Farms) was born, a numerical code that allows identifying a property in all the Property Registries of the Spanish territory in a unique and unequivocal way.

The IDUFIR is the closest thing to the “DNI” of the properties. It emerged as an alternative to the cadastral reference in order to provide greater security and guarantees when identifying a home to carry out procedures related to purchases, sales, donations, inheritances, etc.

→ It may interest you: How to calculate the cadastral value of a home

In 2016, the IDUFIR of the Property Registry was replaced by the CRU (Unique Registry Code). The CRU maintains the same format and characteristics as the IDUFIR (14 digits without variation in time and totally different from the cadastral reference) but facilitates virtual consultations.

Since the CRU has been in force for a few years (only homes registered as of August 2016 have this code), the IDUFIR continues to appear as an identifier in many official documents such as IBI receipts, Simple Notes and Registry Certifications.

What are the IDUFIR and CRU for?

The registration identification codes IDUFIR and CRU allow the real estate to be located. In addition, thanks to them we can carry out the following administrative procedures:

  • Check the ownership of a farm, house or pool or before signing a contract of sale or rental.
  • Request a Simple Note or a Registry Certification to check if a house or a flat is or is not free of charge.
  • Request a Simple Note or a copy of the deeds of a house urgently.
  • Carry out procedures related to the Real Estate Tax (IBI) (payments, postponements, refunds, claims, etc.).
  • Confirm and justify the ownership of a property against third parties in the event of inheritances, donations, building licenses, sales, etc.

IDUFIR in the virtual cadastre: how to locate it and what characteristics it has

The easiest way to find the IDIFUR or CRU of a real estate property is through Nota Simple, where it appears perfectly identified.

You can also access the virtual headquarters of the cadaster and enter the address of the farm or property to obtain the cadastral reference and, from this, the simple note of the property to check the CRU or IDUFIR.

The general characteristics of this identifier are:

  • The IDUFIR has a homogeneous format: it always consists of fourteen digits, ranging from 0 to 9.
  • This code is unique. There are no two IDUFIR codes in the Land Registry that are the same.
  • The IDUFIR is invariable over time. That is, it is assigned at the time of registration and is always kept for the property, even if it changes owners.
  • Since its assignment, the IDUFIR (or CRU) is included in all registration documents related to the property (certifications, IBI receipts, simple notes …).

How is the IDUFIR different from the cadastral reference? Which is more valid?

The cadastral reference is a code that all properties have since registration in the property registry is mandatory and essential to carry out any real estate transaction.

The cadastral reference is an identifier of twenty alphanumeric characters provided by the General Directorate of the Tajarat properties to each real estate.

However, in this case we are not talking about a property indicator, but rather an urban reference that defines the characteristics of a property and is divided into four parts:

  • The first seven characters or digits refer to the farm (address).
  • The next seven, to the page of the urban plan in which the property is registered.
  • The following four, to the characteristics of the house.
  • The last two characters of the cadastral reference are “control”, and are used to detect possible errors and verify that the previous data is correct.

In addition, there is another type of cadastral reference for rustic properties, and that is very important when looking for plots in polygons or in non-urban areas.

But, if both the IDIFUR, the CRU and the cadastral reference are valid from an administrative and legal point of view, what is the difference between them?

When we carry out a real estate operation, we must do several steps in the Property Registry and in the Cadastre (General Directorate of Cadastre). These bodies are independent, and sometimes there are discrepancies between the two.

The Property Registry is a type of real estate registry that, despite not being mandatory, provides us with security and legal protection against third parties. As we have indicated, the Property Registry depends on the Ministry of Justice, so its job is to legally protect the owners.

The Cadastre, for its part, is an administrative record, which depends on the Ministry of Finance, and which allows describing rustic, urban and special characteristics of real estate. Its reference is related to the payment of taxes, being regulated by the Consolidated Text of the Real Estate Cadastre Law.

Unlike what happens in the Property Registry, the registration of a property in the Cadastre is compulsory and free.

How to locate a farm with the IDUFIR code

Locating a farm using the IDUFIR code is very simple. You simply have to access the registradores.org platform, access the “Citizen Information” section and open the “Simple Note by Geolocation” option.

Some of the advantages of using this system to consult the data of home are:

  • You can make the request for the information from anywhere.
  • You can receive a folio with the report by email.
  • You can request simple notes to carry out your procedures urgently.

What do I do if my home does not have the CRU or the IDUFIR?

Registering a home in the Property Registry, although advisable, is not mandatory. Therefore, if you buy a home that is not registered, you will not receive its CRU until you complete this process.

On the other hand, if you bought or inherited property many years ago, you may not have the simple note or the IDUFIR or CRU may not appear on it. In this case, you must request the update of the simple note and the Land Registry will automatically incorporate the CRU into the corresponding document.

We solve your doubts related to the sale of homes. Do you have doubts about the steps you should follow to buy a house? Do you know what procedures you must carry out? Contact us!



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