This impressive 15th-century town hall was designed in the Plateresque style by Diego de Riaño. The intricately carved reliefs on the southern facade depict figures from historical stories and mythology, as well as emblems of the storied founders of the city, Hercules and Caesar. 

The building was renovated in the 19th century with a Neoclassical main facade that looks out onto the Plaza Nueva. A small archway connects the town hall building to the adjacent Franciscan monastery. 

Tourists may make an appointment to visit the interior, which contains several important artistic works including a painting of the town's patron saints, Justa and Rufina.