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Cadastral reference
Cadastral reference

Information on where to find and how to add a cadastral reference.

Updated over a week ago

Table of Contents

What is a cadastral reference?

A cadastral reference is an alphanumeric code that is assigned by the Spanish government. Each property has a unique 14 or 20-digit reference that allows the property to be found on the cadastral map.

A 14 digit reference is a plot (either empty or under construction).

A 20 digit reference consists of the 14 digit plot reference plus 6 digits that relate to the construction or dwelling. The last 2 digits of a 20 digit reference are always letters.

Where can I find the cadastral reference of a property?

Property documentation

  • Energy Certificate

  • IBI receipt (Town Hall rates bill)

  • Basura receipt (Town Hall rubbish fees)

  • Escritura (Title Deed)

  • Nota Simple

Cadastral Website

  • Sede Catastro (Government Cadastral website)

    The site provides various search options: address, map co-ordinates, CRU, or property registry details.

How can I Add and Validate a Cadastral Reference?

  1. Either [Edit] an existing property or [Add Property] for a new one.

  2. Click the [Address] tab.

  3. Enter the cadastral reference in the [Cadastral Ref.] text box.

  4. Click [Validate].

  5. The system will check the reference against the Cadastral Register database.

  6. If the reference is valid you will get a confirmation pop-up, click [Continue].

    • If you get a pop-up saying that the reference already exists, click [Accept].

  7. The official address from the Property Register will appear next to the Cadastral Ref.

  8. Complete the [Property Address] fields below. As the official address can differ from the actual address, you can the edit the [Property Address] area if needed to make it easier for staff to identify and find a property.

Can I add more than one cadastral reference to a property?

Yes you can, click the bluee above + after validating the first reference and continue.

I only have a 14-digit cadastral reference

The system default is to accept a 20 digit reference, however if the property only has a 14 digit reference, at the time of validating the cadastral reference simply select the tickbox to allow a 14 digit reference.

If a property is a new built, off plan, or still under construction it is likely that it has not yet been assigned a full 20-digit Cadastral reference, so use this option.

Do not use this function if the property actually has a 20-digit reference.

Invalid Cadastral Reference message

In most cases when you get a message saying the Cadastral Reference number is invalid, do the following:

  1. Check that the reference contains:

    • 20 digits for a residence

    • 14 digits for a plot

  2. Ensure that it has been entered with the correct letters and numbers, eg:

    • Letters "O" and "I" are often confused for zero and number 1.

  3. We have seen incidences where the property documentation contains a typing error on the reference, or the property has been issued with a new reference. In these cases you can search for the correct reference on the Sede Catastro site.

What does " This property is linked to others " mean?

When a cadastral reference is verified:

  • The system will match it against all other cadastral references in the ReSales-Online database.

  • The properties that share the same reference will be linked.

  • Any other versions of your property that have been listed by other agents will display in a list under the heading This Property is linked to others:

    • The list will contain the reference number of other property(s), the Status, Agency Name, and sale and/or rental prices.

    • Hover the mouse over the Ref Id to see a pop-up of basic property details and photo.

    • The list will be displayed on the [Agent Info] tab on a property and also on the [Address] tab when editing your own listings.


If you are having trouble with a cadastral reference issue, start a chat with Customer Support and and they will assist you as best as possible.

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