Could Some Spanish Homes Become Unsellable in the Next 10 Years?

12 Aug 2025

Spain is looking for ways to boost the energy efficiency of its housing stock — and new EU rules could change the property market dramatically.

According to the Andimac association, 83% of homes — that’s 8 out of 10 — will fail to meet the minimum energy efficiency requirements set by the European Directive within just 6 years.

Under the directive (not yet in force in Spain), from 2030 a property will need at least an “E” energy rating to be legally sold or rented.

Today there are 7 energy ratings:

  • A – Most efficient (energy use < 55%)
  • G – Least efficient (energy use > 125%)

What this means for homeowners: Without upgrades, 8 out of 10 Spanish homes will fail to get an E rating or higher. To comply, many properties will require significant improvements such as:

  • Installing renewable energy systems (solar panels, photovoltaic systems)
  • Upgrading insulation for façades and windows

Why this could be a challenge: Andimac points to complex ownership structures, overly restrictive rules for renovation subsidies, and a lack of national coordination between institutions and the private sector.

White Coast Insight: If you’re thinking of buying in Spain, check a property’s energy certificate before signing. Future regulations could greatly impact its resale and rental potential.

Could Some Spanish Homes Become Unsellable in the Next 10 Years?

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