Cheaper than 120k?
Something in the city centre is more like 4800 euro/sqmt (https://www.idealista.com/sala-de-prensa/informes-precio-viv...).
Just browse idealista in the city you want and you'll see its not such a bargain as people might think. Mid-sized cities I've checked (Vigo, Valencia, Granada) all have similar prices, around 400k for a 2-3 bed older apartment, or twice as much for a newer one.
It'll be 350k for a 100m2 apartment or even more expensive in the popular neighbourhoods.