The church has a hall floor with a spacious transept to hold future burial tombs. The sanctuary is polygonal making a tapestry of sculpture of Mudejar style. It is covered with a vault of eight-pointed stars and is supported by tubes. In the transept in the nave, the epigraphic decoration can also be seen, also from the Mudejar tradition, these signs alluding to the conquest of Granada. The entrance was planned for the end of the base of the church and the high choir, leading from the nave to the main altar, following the growth in illumination in the spaces. The repeated royal coats of arms in the main chapel were created before 1492, since the pomegranate fruit does not appear, which was a symbol of the then conquered kingdom. All of the decoration is repetitive and intended to underline the magnificence of the monarchs. Isabel is symbolised by sheaves of arrows that represent the union of forces and by the letter “Y” of her name, in the spelling of the time.