Porto
Maritime · UNESCO World Heritage 1996
Median asking price
€3,908/m²
Year-on-year growth
+5.9% (Idealista, Nov 2025)
Annual rainfall
1,100 to 1,300 mm · highest mainland
Dominant historic typology
Casa burguesa · 17th to early 20th century, granite party walls + timber floor structure
Foreign buyer premium
35.6% over national buyers (INE Q4 2025)
Top growth neighbourhoods
Foz do Douro +14.5% · Cedofeita, Boavista, Lordelo do Ouro +8.6%
Seismic zone
Lower than Lisbon (Anexo Nacional do Eurocódigo 8)
Priority defect categories
Rising damp · timber beam-end decay · roof valley infiltration · ARU rehab quality variance
Lisbon
Atlantic · post-1755 Pombaline reconstruction
Median asking price
€5,914/m²
Year-on-year growth
+4.0% (Idealista, Nov 2025)
Annual rainfall
700 to 800 mm · Mediterranean influence
Dominant historic typology
Pombaline · post-1755, gaiola pombalina timber frame + limestone façade
Foreign buyer premium
49% over national buyers (INE Q4 2025)
Top growth neighbourhoods
Príncipe Real, Chiado, Alfama in correction · Marvila, Beato active
Seismic zone
Higher (1755 reference event) · seismic reinforcement common
Priority defect categories
Façade tile delamination · acoustic between flats · heat stress on south façades · gaiola timber decay