The interior is characterized by unity of style (late Gothic), except for the dome, built around 1630 by Pedro de Brizuela.
Zaradi strahu pred ponovnimi napadi, se je katedrala preselila na sedanjo lokacijo in je bila zgrajena po modelu mojstra zidarja z imenom Juan Gil de Hontañón, delo je nadaljeval njegov sin Rodrigo Gil de Hontañón.