DL 95/2019, Art. 8.º · Portaria n.º 302/2019, Art. 1.º

When extension, alteration or reconstruction works need a seismic vulnerability report

Any one of the four conditions is enough. The duty attaches to works, never to a sale.

Condition 1
Evident signs of structural degradation
Condition 2
Works change the building's structural behaviour
Condition 3
Area intervened above 25% of gross construction area
Condition 4
Construction cost above 25% of an equivalent new building
Importance classes III and IV
Conditions 3 and 4 fall to 15%
Reinforcement project mandatory
Below 90% of the seismic action, NP EN 1998-3:2017
What a buyer can ask forFor a building renovated after 15 November 2019: the seismic vulnerability report and any reinforcement project, from the seller, the condominium administrator or the licensing file at the Câmara Municipal. A missing report after heavy works is a question to ask, not proof of a defect.
Sources: Decreto-Lei n.º 95/2019, de 18 de julho, Art. 8.º · Portaria n.º 302/2019, de 12 de setembro, Art. 1.º, both in force 15 Nov 2019 · NP EN 1998-3:2017 · Last reviewed 24 Sep 2026 · InspectOS