Castro-Urdiales Property Prices, Rents & Rental Yields

About Castro-Urdiales

Castro-Urdiales sits on Cantabria’s eastern coast, where a historic harbour and old town meet the Bay of Biscay. Its shoreline and proximity to the Basque Country give the city a distinctive setting for an apartment investment location page.

In October 2026, the clearest signal for Castro-Urdiales apartments is a split between sale and rental prices: the average sale price rose 3.5% month over month, while the average rent fell 5.6%. That divergence matters for investors because a higher purchase price paired with a lower rent can narrow the income available relative to the amount invested. A single month does not establish a lasting trend, but it does make the relationship between purchase cost and rental income more important to examine.

At €295,000, the average apartment sale price offers a reference point for that assessment, not a price to expect for every property. The reported yield is 4.05%, but a headline yield cannot capture the costs or rental terms of an individual investment. Read together, these figures suggest caution about treating the monthly rise in sale prices as an improvement in investment returns: rent moved in the opposite direction.

For anyone assessing an apartment in Castro-Urdiales, the useful question is how its purchase price compares with the rent it could realistically achieve. The October figures frame that comparison; they do not settle it for any particular property.