Castellon province Property Prices, Rents & Rental Yields

About Castellon province

Castellon province combines Mediterranean coastline, inland towns and a practical link to Valencia and Catalonia. Its apartment market reflects that mix, with urban and coastal locations often moving on different rhythms while still tracking the same wider regional trend.

September 2026 brings the clearest signal of the month: apartment prices are still rising, but returns are being squeezed by the pace of that growth. The average sale price now stands at €177,000, while the average price per square metre has climbed to €1,880, up 2.2% month on month and 13.5% year on year. That annual increase is mirrored in the sale price itself, also up 13.5%, showing that the uplift is broad rather than isolated.

Rents have not moved in monthly terms and remain at an average of €800, yet they are still higher than a year ago, up 10.3%. Against that backdrop, the gross yield sits at 5.6%, which suggests the income side is keeping pace only partially with capital growth. For investors, the tension is clear: Castellon’s apartment values continue to strengthen, but the rent line is not accelerating quickly enough this month to offset all of that appreciation.