Donostia-San Sebastián Property Prices, Rents & Rental Yields

About Donostia-San Sebastián

Donostia-San Sebastián sits on the Bay of Biscay, with La Concha beach, the Old Town and a distinctive food culture shaping its coastal setting. These features give the city a recognisable identity beyond its property market.

In October 2026, the clearest signal for apartments is the split between rents and sale prices: average rent is up 25.0% year over year, while the average sale price is down 7.0% over the same period. For an investor, that contrast makes the relationship between purchase cost and rental income more relevant than either trend on its own. It does not, however, show that every apartment would produce the same return; the figures describe market averages, not an individual letting.

The average apartment sale price stands at €600,000, and the reported yield is 4.07%. Read together, those figures offer a useful starting point for assessing the market, but not a complete investment case. The annual movements point in opposite directions, while the yield brings the focus back to the income available relative to price. Keeping those measures distinct matters: a change in average rent does not by itself establish the return on a particular purchase.

The practical takeaway is to test any prospective apartment against its own purchase price, achievable rent and costs. October’s figures provide context for that calculation, rather than a substitute for it.