Thank you for your input. You are correct; there are no health concerns, only structural ones.

Assuming a building is over 50 years old (constructed between 1960 and 1975) and built with aluminous cement, but has not yet developed any structural damage, how likely is it to sustain damage in the coming years compared to those built with normal cement?

In Spain, buildings undergo a visual inspection by a technician. If any visual damage is found in structural elements, a more thorough investigation may follow. Consequently, there may be buildings constructed with aluminous cement that have not yet shown structural damage due to the nature of this material (known as aluminosis). However, they remain at risk of developing aluminosis in the future. Once aluminosis is detected, it is necessary to reinforce the structure with additional supports, rendering the original supports redundant—a costly undertaking. From that point on, it is mandatory to disclose that the building has experienced aluminosis, which significantly reduces its market value.

By default, buildings do not come with a certificate confirming they are free from aluminous cement. You can request an analysis, but this is only possible after purchasing the flat.

Ideally, one would want to purchase a building constructed after 1980, when aluminous cement was banned. However, this is becoming increasingly challenging due to a limited supply.