Seeki.eu lists 450+ properties for sale and 200+ to rent in San Sebastián.
The median asking price is €581,000, or €6,469 per m² on a typical 90 m², across sale listings that publish both a price and a floor area.
On the rental side, the median asking rent for an apartment is €1,525 a month, across apartment rentals that publish both a price and a floor area.