The square portal leading from here to the Chapterhouse proper was executed in the so-called Cisneros style by Master Pablo and Bernardino Bonifacio de Tovar, combining Mudéjar features with Plateresque decoration, in 1510.
Antesala je opremljena z omarami; plemenitejše delo je na levi strani z helenistično dekoracijo Gregoria Pardoja (1551), na desni strani je delo Gregoria López Duranga (1780).