First, portal analysts and agencies only consider the properties they helped sell. The average value is calculated based on the amount that the seller declares.
Second, official statistics use closing prices. Thus, for example, the Idealista portal states the average residential property price as €2,475 per 1 m², while the Engel&Völkers agency provides €3,800 per 1 m².
The prices are also affected by foreigners buying or renting housing in Portugal to apply for the D7 visa and get a residence permit.
