Portugal's property market changed.
The liability transferred to buyers.
The quality infrastructure was missing.

Foreign investors arriving from the UK, Germany, the Netherlands, and the US kept arriving in Portugal with the same expectation: that somewhere, there was a certified inspection benchmark. A TÜV, a RICS, a DTT equivalent. An independent engineer who would show up, assess the property against a documented standard, and produce a report their lawyer could act on.

There was no such thing.

Solo operators worked with clipboards. Reports arrived as Word documents with no certifying body, no legal standing, no accountability framework. Buyers signed escrituras on properties that no independent engineer had ever assessed. When defects emerged after handover, liability belonged to whoever was last to sign.

This was Portugal's property market for decades. The market worked on introductions, trust, and optimism. Then three things happened in rapid succession.

Decreto-Lei 10/2024 removed the municipal licence filter that had historically caught illegal extensions and unlicensed works before properties could legally change hands. Buyers inherited full liability for defects the government would no longer identify.

The EU's Energy Performance of Buildings Directive began its transposition into Portuguese law. Low-rated properties will face mandatory renovation obligations. The cost differential between an A-rated and F-rated property is no longer an energy bill; it is a remediation liability of €20,000 to €40,000 per unit.

Portugal's 1951 building code, the RGEU, is set for revocation on 1 June 2026, leaving a period with no clear national construction standard in effect and no confirmed replacement framework.