Hangar 1 at Barajas towards BIC: what it means for AENA and airport managers

Key data

AENA and the ENAIRE Foundation face an immediate change in the legal framework governing Hangar 1 at Adolfo Suárez-Barajas airport. The General Directorate of Cultural Heritage and Fine Arts has opened the file to declare this building a Cultural Heritage Asset (BIC) in the category of monument, through the Resolution of May 19, 2026, published in the BOE on June 3, 2026.

Hangar 1, a work by engineer Eduardo Torroja Miret built in 1945, is a reference point for Spanish structural engineering of the twentieth century. The opening of the file is not the final declaration, but its effects are immediate: precautionary protection is already active.

What does this regulation establish?

The resolution activates three legal consequences from the day of its publication:

• Preventive annotation of Hangar 1 in the General Register of Cultural Heritage Assets.
• Activation of precautionary protection measures provided for in Law 16/1985 on Spanish Historical Heritage.
• Opening of a public information period for any interested party to submit objections to the Sub-directorate General for Management and Coordination of Cultural Assets.

Additionally, formal hearing is given to the following bodies:

If the file concludes with the final declaration as BIC-Monument, the building will be subject to the most stringent restrictions of historical heritage legislation: any intervention, work or modification to the building and its protection area will require express authorization from the competent cultural heritage administration.

Economic and operational impact

Opening the file does not generate immediate direct costs, but significantly conditions the operational and investment planning of the building's managers. The most relevant operational impacts are:

• Suspension or conditioning of ongoing or planned works on Hangar 1 or its surroundings, as the precautionary measures of Law 16/1985 are activated.
• Need to obtain additional authorizations from the General Directorate of Cultural Heritage and Fine Arts for any future intervention, which extends project execution timelines.
• Increased cost of rehabilitation or maintenance: BIC-Monuments require the use of materials and techniques compatible with the conservation of the asset, which typically increases intervention costs compared to conventional works.
• Risk of incompatibility between current or future airport uses of the hangar and the requirements of historical heritage conservation.

If the final declaration occurs, the restrictions are consolidated and the protection area of the monument is also affected, which may condition developments or remodeling in the airport's industrial zone.

Who does it affect?

• AENA: as airport manager, any project for reform, expansion or change of use of Hangar 1 is already conditioned.
• ENAIRE Foundation: as asset manager, must adapt its conservation and use planning to historical heritage regulations.
• Ministry of Transport: involved in the hearing and in coordinating infrastructure policies with heritage protection.
• Madrid City Council and Community of Madrid: must comment on the file and coordinate their urban planning with the future BIC declaration.
• Contractor and consulting companies working on construction or rehabilitation projects in the surroundings of Hangar 1 at Barajas airport.

Practical example

Suppose AENA has planned a structural adjustment or change of use intervention for Hangar 1 in the coming 12 months. As of June 3, 2026, that intervention can no longer be executed under the ordinary regime for airport infrastructure works.

With the preventive annotation active, AENA must:

1. Suspend or halt any action that could affect the building until the outcome of the file is known.
2. Request a prior report from the Sub-directorate General for Management and Coordination of Cultural Assets before executing any work.
3. Adapt the technical project to historical heritage conservation criteria, which may involve redesign and unbudgeted additional costs.

If the final declaration as BIC-Monument occurs, this procedure becomes a permanent requirement for any future intervention, without exception.

What should companies do now?

1. Immediately review ongoing projects affecting Hangar 1 or its surroundings at Barajas airport, and assess whether they are conditioned by the precautionary measures already active.
2. Consult with the Sub-directorate General for Management and Coordination of Cultural Assets before executing any work or intervention on the building.
3. Submit objections during the public information period if you have legitimate interests that may be affected by the final BIC declaration.
4. Update investment and maintenance planning for Hangar 1 incorporating the requirements of Law 16/1985 on Spanish Historical Heritage.
5. Coordinate with Madrid City Council and the Community of Madrid to anticipate possible incompatibilities between airport urban planning and the future BIC declaration.
6. Seek advice from historical heritage specialists to assess the impact on planned reform or change of use projects in the medium and long term.

Official source

Consult complete regulation at official source

Notice: 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-2026-11931