ICO Mortgage for Affordable Housing: Which Clauses Can Be Registered

Key data

If your company develops or finances affordable rental housing with a business mortgage, this resolution defines which clauses in your deed can be protected by the Property Register and which cannot. The ICO formalized a business mortgage on a surface right in San Juan de Alicante to finance a development of affordable social rental housing within the ICO Housing Program 2022-2025. The registrar registered the mortgage but suspended numerous clauses, considering them personal in nature, informative, or lacking real significance.

The ICO appealed to the General Directorate of Legal Security and Public Faith (DGSJFP), which ruled in its favor through the Resolution of March 26, 2026, published in the BOE on July 8, 2026 with reference BOE-A-2026-14843.

What does this regulation establish?

The resolution analyzes two central issues that have direct impact on any business mortgage financing operation for protected housing:

• The scope of Article 12 of the Mortgage Law: determines which agreements in a mortgage loan deed have "real significance" sufficient to access the Property Register, beyond the simple personal obligation between the parties.
• The limits of property registration qualification in business loans: the registrar cannot apply the unfair terms control specific to consumer contracts when the borrower is a business entity. Complex financial clauses agreed between professionals have a different regime.

The DGSJFP concluded that the clauses suspended by the registrar of Alicante no. 5 do have mortgage relevance and must be registered. This strengthens the legal certainty of real guarantees in construction projects with public financing.

Economic and operational impact

For financial entities and developers operating in the affordable housing segment with public financing, this resolution has direct operational consequences:

• Strengthened legal certainty: complex financial agreements—common in ICO Housing Program 2022-2025 operations—can be protected through registration, reducing risk in case of default or mortgage foreclosure.
• Reduced litigation risk: by clearly defining which clauses access the Register, it avoids subsequent disputes over the enforceability against third parties of certain financial agreements.
• Impact on deed negotiation: financing entities will be able to demand with greater justification that their guarantee clauses be registered, improving their position in the operation structure.
• Cost of registration resources: the resolution reminds that appealing a negative qualification has cost in time and legal resources. Knowing the DGSJFP's criterion allows anticipating which clauses are registrable and drafting stronger deeds from the start.

Who does it affect?

• Real estate developers developing social or affordable rental housing projects financed by the ICO or other public entities.
• Public financial entities (ICO and similar) granting business mortgage loans for protected housing.
• Private financial entities financing affordable housing developments with mortgages on surface rights or other real guarantees.
• Legal advisors and notaries drafting or reviewing business mortgage loan deeds in the protected housing field.
• Property registrars qualifying similar operations: the resolution establishes binding criteria on the limits of their qualifying function in business loans.

Practical example

A developer establishes a business mortgage on a surface right in a municipality of the Valencian Community to develop 40 affordable rental housing units, financed within the ICO Housing Program 2022-2025. The deed includes early maturity clauses, conditions for disbursement by tranches, and work supervision agreements.

The registrar suspends these clauses for being personal in nature or merely informative, lacking real significance. Following the criterion established by the DGSJFP in this resolution, the financing entity can appeal the qualification arguing that such agreements do have mortgage relevance and that, being a business loan, the unfair terms control applicable to consumers does not apply. The expected result, in accordance with the resolution's doctrine, is the registration of the suspended clauses and full registration effectiveness of the real guarantee.

What should companies do now?

1. Review current business mortgage deeds on affordable housing projects to identify whether there are clauses suspended by the registrar that could be registered according to this criterion.
2. Update deed templates used in ICO Housing Program 2022-2025 operations or similar, incorporating the argument about the mortgage relevance of complex financial agreements.
3. Coordinate with notaries and legal advisors the drafting of clauses that pass the property registration qualification filter from the start, avoiding costly subsequent appeals in time and resources.
4. Evaluate the possibility of appealing previous negative qualifications in similar operations, in light of the criterion established by the DGSJFP in this resolution.
5. Inform risk and structuring teams about the limits of registration control in business loans, to correctly assess the legal certainty of real guarantees in future projects.

Official source

Consult complete regulation in official source

Disclaimer: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://www.boe.es/diario_boe/txt.php?id=BOE-A-2026-14843