Surface Rectification in Horizontal Property: What You Can Do Without a Deed

Key data

You have an apartment with 95 actual square meters, but the Registry shows 82. You want to sell it or mortgage it and the bank or notary asks you to reconcile the square meters. What do you do? Public deed? Owners' meeting? Domain proceedings?

The Resolution of January 13, 2026 from the General Directorate of Legal Security and Public Faith, published in the BOE on May 16, 2026, answers exactly this question. And the answer can save you time and money: in certain cases, a simple application to the Registry is enough.

What does this regulation establish?

The resolution arises from an appeal against the qualification note of the property registrar of Telde, who suspended the surface rectification of a private element in horizontal property requested through a simple application.

The General Directorate analyzes two key issues:

• Formal and material requirements to rectify the area of a private element without a public deed or agreement of the homeowner association.
• Limits of the simplified procedure versus cases that require domain proceedings or unanimous agreement of owners.

In summary, the resolution draws a clear line between two scenarios:

The simplified procedure is a faster and more economical route. But it is not universal: the resolution makes clear that the registrar can—and must—suspend it if the requirements are not met.

Economic and operational impact

The discrepancy between the actual and registered surface area of a property in horizontal property has direct economic consequences in two common operations:

• Real estate transfers: A deed of sale with square meters that do not match the Registry creates problems in notarial and registry qualification, can delay closing and, in some cases, reduce the sale price or generate contingencies for the seller.
• Mortgage operations: Banks value the property based on actual square meters. If the Registry shows fewer square meters, the appraisal may not match reality and the loan may be limited or denied.

Correcting this discrepancy through the simplified procedure—when applicable—avoids the costs of a public deed before a notary and the timelines and fees associated with domain proceedings. The savings can be significant, especially in operations where time also has a cost.

From the perspective of legal security, this resolution reinforces clarity on what an owner can do alone and what requires intervention from the community or the court.

Who does it affect?

• Apartment owners with discrepancy between actual square meters and those registered in the Property Registry.
• Commercial premises owners under horizontal property regime with the same issue.
• Buyers and sellers of properties in homeowner associations where registered surface does not match actual surface.
• Financial entities and appraisers working with properties in horizontal property and detecting area discrepancies.
• Notaries and registrars who qualify operations on private elements with discrepant surface area.
• Property managers and real estate advisors managing operations where registered surface is an obstacle.
• Lawyers and managers advising owners in registry rectification processes.

Practical example

An owner of an apartment in a homeowner association in Telde (Las Palmas) verifies that their home has 90 built square meters according to the cadastre and original deed, but the Property Registry shows only 78 square meters. They want to sell the apartment and the buyer requests that the registered surface match the actual surface before signing.

Before this resolution, the most common route was to go to a notary to execute a rectification deed or initiate domain proceedings, with the costs and timelines that entails.

Following the January 2026 resolution, the owner can analyze whether their case meets the requirements of the simplified procedure. If so, they can submit an application directly to the Property Registry requesting surface rectification, without the need for a public deed or convening an owners' meeting to obtain unanimous agreement from the community.

If the registrar suspends the registration—as happened in the case that gave rise to this resolution—the owner can appeal to the General Directorate of Legal Security and Public Faith, which will resolve according to the criteria established in this same resolution.

What should owners do now?

1. Check the surface area registered in the Property Registry of your apartment or premises and compare it with the actual surface area, the original deed and the cadastre. If there is a discrepancy, you have a latent problem that may surface in the next sale or refinancing.
2. Analyze whether your case meets the requirements of the simplified procedure established by the General Directorate of Legal Security and Public Faith in the Resolution of January 13, 2026. To do this, consult with a lawyer or manager specialized in registry law.
3. If the simplified procedure applies, submit the application to the corresponding Property Registry requesting surface rectification. Make sure to comply with all formal and material requirements to avoid a negative qualification note.
4. If the registrar suspends the registration, consider appealing to the General Directorate of Legal Security and Public Faith, providing documentation that proves compliance with the requirements of the simplified procedure.
5. If your case does not meet the requirements of the simplified procedure, evaluate alternatives: public rectification deed before a notary, domain proceedings or unanimous agreement of the homeowner association, as appropriate.
6. If you have a planned sale or mortgage operation, resolve the surface discrepancy before starting the process to avoid delays and contingencies in closing.