Castelldefels Property Prices, Rents & Rental Yields

About Castelldefels

Castelldefels sits on the Mediterranean coast southwest of Barcelona, pairing a long beachfront with an urban centre. Its position in Barcelona province places the shoreline and the wider metropolitan area in the same geographical frame, a useful backdrop for reading local apartment prices.

October 2026 brings a clear contrast for Castelldefels apartments: the average sale price reached €420,000 after rising 4.4% month over month, while the average rent of €1,750 was down 2.8% year over year. These are different comparison periods, so they should not be treated as a direct monthly divergence. Together, though, they show why recent purchase-price gains need to be considered alongside a weaker annual rent comparison.

For investors, the tension lies in using a higher purchase-price benchmark without assuming that rental income has moved in step. The figures describe market averages, not the cash flow of any particular apartment. They also cannot show whether the latest rise in sale prices will continue. An investment assessment should therefore test expected rent against the price of the specific property, rather than apply the market averages as a ready-made return estimate.

The October snapshot is most useful as a prompt for that closer calculation. Apartment condition, location within Castelldefels and operating costs can all affect an individual result, but their effects cannot be inferred from these figures. The supported conclusion is narrower: recent sale-price growth sits beside rent that remains below its level a year earlier.