The oldest housing stock is found in the interior of Alentejo, according to the National Statistics Institute (INE). And the newest is in the Cávado region, in the north of the country.

In 2021, the Portuguese housing stock totalled 3,573,416 buildings, of which almost half (49.8%) were built after 1980. It was between 1981 and 2000 that a peak was recorded, with more than 1 million buildings constructed (31.9% of the total). From then on, it continued to decline, so much so that only 110,784 buildings were built between 2011 and 2021, representing 3.1% of the total.

“The lower construction dynamics in the last decade was reflected in the building aging index, which in 2021 stood at 747”, revealed INE in the study on the country’s housing stock.

INE reveals that Alto Alentejo stood out with the oldest housing stock (2,571), followed by Baixo Alentejo (2,213) and Alentejo Central (2,200). The regions of Cávado (266), Ave (322), and Península de Setúbal (419) had the lowest aging rates.