Castelldefels Property Prices, Rents & Rental Yields

About Castelldefels

Castelldefels sits on the Barcelona coast, where long beaches, a residential feel, and direct connections to the city make it a distinctive investment setting. For apartments, the appeal is shaped by its seaside location and the balance between everyday living and access to the metropolitan area.

September 2026 brings the clearest signal: prices have edged higher again, while rental conditions have softened. The average sale price for apartments is now €402,350, up 0.8% over the month, and the average price per square metre has moved to €4,570, also up 0.8%. That modest firming suggests values are trying to stabilise after a weaker year.

At the same time, the income side is less supportive. Average rent stands at €1,700, down 3.1% month on month and 0.2% lower than a year earlier. Against that backdrop, the yield is 5.81%, which still indicates a measurable return, but one that has to be weighed against the fact that sale prices are 3.6% lower year on year and price per square metre is down 4.7%. The result is a market where capital values are recovering in small steps, while rental momentum remains comparatively subdued.