The building is square, and is structured around a large courtyard with columns.
Works started in the year 1541 and were completed in 1549; various reforms were carried out by Bernasconi in 1779.

The façade is in the plateresque style.
It has two large columns that are decorated with grotesques and figures in relief at their base, while they appear grooved on the top.
On the lintel that frames the main door, the niche between columns contains the image of Saint Catherine of Alexandria, flanked by two coats of arms of Bishop Acosta.
A triangular pediment crowns this second body.
Above this is the imperial coat of arms of Philip II, from the later period.

Inside it has a square Renaissance courtyard with two floors connected by a monumental staircase.
The central courtyard is surrounded by double arches supported by columns of smooth shafts.
The building is square, and is structured around a large courtyard with columns. Works started in the year 1541 and were completed in 1549; various reforms were carried out by Bernasconi in 1779.
The façade is in the plateresque style. It has two large columns that are decorated with grotesques and figures in relief at their base, while they appear grooved on the top. On the lintel that frames the main door, the niche between columns contains the image of Saint Catherine of Alexandria, flanked by two coats of arms of Bishop Acosta. A triangular pediment crowns this second body. Above this is the imperial coat of arms of Philip II, from the later period.
Inside it has a square Renaissance courtyard with two floors connected by a monumental staircase. The central courtyard is surrounded by double arches supported by columns of smooth shafts.
University of Santa Catalina