In Spain, sustainable construction is no longer an alternative, but an obligation set out in European regulations and driven by growing awareness among customers and developers. 2025 will be a year full of innovations in materials, more stringent regulations and a clear change in the way the market understands the value of buildings.

Booming materials

  • Engineered wood (CLT and glulam): this is becoming established as a structural material in residential and tertiary projects. Spain already has some iconic examples in cities such as Madrid and Barcelona, and its combination of strength and sustainability makes it a key player
  • Green concrete: increasingly present in urban projects, it incorporates recycled materials and techniques that reduce its carbon footprint, aligning with the objectives of the 2030 Agenda.
  • Ecological insulation: the use of natural cork (closely linked to Spanish industry), sheep’s wool or recycled cellulose is gaining ground over synthetic products.

Regulations and certifications in Spain

  • Technical Building Code (CTE): in its Basic Energy Saving Document (DB-HE), it establishes increasingly strict efficiency requirements.
  • RE 2020 and European regulations: Spain is making progress in adapting to European directives that set the standard for ‘nearly zero-energy buildings’ (nZEB).
  • Sustainable certifications: LEED, BREEAM and Passivhaus seals are becoming established in the domestic market, especially in high-end residential developments and corporate offices.

What Spanish customers will demand in 2025

Buyers and investors are no longer focused solely on design or location:

  • Energy efficiency: they are looking for homes with minimal consumption and real savings on bills.
  • Health and well-being: non-toxic materials, good indoor air quality and comfortable spaces.
  • Environmental commitment: sustainability is perceived as an added value that increases the value of the property and projects a better image.

Sustainable construction in Spain in 2025 is shaping up to be a driver of innovation and competitiveness.

At Altamira Constructora, we are committed to integrating low-impact materials, complying with the most demanding regulations and offering projects that respond to the new market sensibility. The future of the sector lies in the hands of those who build with respect for the environment and provide lasting value to customers and communities.