The villa has a distinctly medieval air, between walls and narrow and irregular streets. The result of this is the medieval castle of the barons of Santa Pau, documented mid-thirteenth century, and situated on a ridge at the foot of the Sierra de Finestres. In 1971 Sant Pau was declared a National Historic-Artistic.
Inside the walls are stacked townhouses and adapt to uneven terrain leading to a street with all the medieval charm.