Large housing holders face new rental price limits in stressed zones

The Ministry of Housing and Urban Agenda has issued Resolution BOE-A-2026-16532, publishing the list of residential stressed market zones declared during the second quarter of 2026. This administrative act, following the procedure established in Article 18 of Law 12/2023, formalizes the status of several municipalities across Asturias, Galicia, and the Basque Country, triggering specific regulatory mechanisms regarding rental prices and the classification of large-scale property owners.

What changes

The primary consequence of this resolution is the activation of the legal framework for 'stressed residential markets' in specific territories. According to the provisions of Article 18.2.d) of Law 12/2023, the declaration of these zones introduces three critical regulatory shifts:

• Specific Definition of Large Holders: Beyond the general definition provided in Article 3.k) of Law 12/2023, these zones may apply a particularized definition of 'gran tenedor' (large holder). This means a property owner might be classified as a large holder in Santiago de Compostela or Basauri even if they do not meet the national threshold, depending on the regional criteria adopted in the specific declaration.
• Rental Price Limitations: The resolution triggers the application of limitations on rental prices as provided in the second paragraph of Article 17.7 of Law 29/1994 (Urban Leasing Act - LAU). This is designed to prevent excessive rent hikes in areas where market tension is officially recognized.
• Duration and Validity: The resolution establishes the specific period of validity for these stressed market designations, which dictates how long these restrictive measures will remain in force for the affected municipalities.

The affected areas specifically include various municipalities in Asturias (Gijón, Avilés, Gozón, Llanes), Santiago de Compostela in Galicia, and Basauri in the Basque Country, as detailed in the official text of BOE-A-2026-16532.

Context

This resolution is part of the ongoing implementation of Law 12/2023, the Spanish Housing Law, which seeks to regulate the rental market through the designation of 'stressed zones.' Under this legal framework, the central government acts as a registry for declarations made by Autonomous Communities. When a region identifies that housing prices are disproportionately high compared to local income or that supply is critically low, it can declare a stressed market zone.

Previously, rental regulation was largely left to the discretion of individual landlords and the general provisions of the LAU. However, the current legal landscape allows for a more granular, territory-based intervention. This quarterly publication ensures that the legal status of a municipality is updated, providing certainty to both the real estate sector and the general public regarding which rules apply to a specific street or neighborhood.

Who is affected and how

Large Corporations and Institutional Investors

Companies that manage large real estate portfolios are the most directly impacted. If an entity owns properties in the newly declared zones, such as the neighborhoods of La Arena or Cimadevilla in Gijón, they must immediately audit their holdings. The risk is twofold: first, they may be reclassified as 'large holders' under the specific regional definitions mentioned in Article 18.2.d), and second, they will face stricter caps on the rental prices they can demand for new and renewing contracts. Compliance with these limits is mandatory to avoid administrative sanctions.

An individual professional who acts as a landlord may also be affected. While many 'autónomos' own only one or two properties, the specific regional definitions in these stressed zones could potentially classify them as large holders if they meet certain local thresholds. This would subject them to the same price limitations and regulatory obligations as large corporations. It is essential to consult the specific regional resolution to determine if your personal portfolio falls under the 'gran tenedor' category in these new zones.

For tenants residing in the affected areas (such as the neighborhoods of Nueva, Poo, Barro, or Celorio in Llanes), this resolution provides a layer of legal protection. It ensures that the rental market in their area is subject to the oversight intended by the Housing Law, potentially stabilizing costs. For small-scale private landlords, the impact is primarily the need to ensure that any new lease agreement complies with the price limits established by the LAU in stressed zones to prevent legal challenges from tenants.

What to do and when

The declaration of these zones is effective immediately upon the publication of the respective regional resolutions incorporated into this BOE document. Affected parties should take the following steps:

• Audit Property Portfolios: Owners of properties in Asturias, Galicia, or the Basque Country should cross-reference their locations with the specific municipalities listed in BOE-A-2026-16532.
• Verify 'Large Holder' Status: Do not rely solely on national thresholds. Check the specific regional resolution (e.g., the one from the Principality of Asturias or the Basque Country) to see if a lower threshold for 'gran tenedor' has been applied.
• Review Rental Pricing Models: If you are a landlord or a property manager, ensure that all upcoming lease renewals or new contracts in these zones respect the limitations set by Article 17.7 of the LAU.
• Monitor Regulatory Updates: Since these declarations are reviewed quarterly, the status of a zone can change. Continuous monitoring is required for long-term real estate investment strategies.

Given the complexity of regional definitions and the potential for administrative sanctions, we recommend assessing your specific situation with the legal and tax specialists at BMC to ensure full compliance with the evolving housing regulations.