The first masonry church of Porac may have been finished around this time with Fathers Manuel Obregon and Nicolas Mornier responsible for its construction.

In recent years, much renovations have been executed on the church, especially notable of these are the new naves and transept, which no longer bears any trace of the original stone used in the 19th century.

Father Daniel Castrillo, the last Augustinian priest of the parish, had the church reinforced with concrete, made other restorations and rebuilt the convent.

The façade is simple, adorned only by Corinthian columns of its first and second levels, iron grills on the windows, the Augustinian emblem on the triangular pediment and rectangular pilasters.

The main focal point of the façade is the rose window bearing an image of Saint Catherine of Alexandria rendered on stained glass.