Ashlar from the nearby mountain of Montjuïc was used for the construcction, with sand from the beach in front of the shipyard, wood from the Baix Ebre and Gavarres and ropes and tiles from Valencia.
It and several other Visigothic churches built in Spain about the same time represent the last ashlar construction in western Europe until Charlemagne, and can be seen as the end of that ancient Roman building tradition in the west.
A further (ashlar) monument is to William Bonde (d.1559), erected by his son Nicholas, President of Magdalen College, Oxford.
The south and north approaches are of rock-faced Mohawk Valley limestone with Maine granite trimmings, the face work being of coursed ashlar.
It is a three-story limestone ashlar Victorian Gothic Revival building with sandstone trim, designed by architects Edwin L. Walter and Frederick Lord Brown and built in 1888.
Designed by Theodore Wells Pietsch, it is a nine-story loft building constructed in 1905 of "fireproof" reinforced-concrete construction, faced in buff-colored brick, with a coursed ashlar foundation and stone trim.
The memorial, built from Portland stone ashlar, is a square pillar raised on three steps with a dentilated cornice, capped by a ball.
The older part of the tower is constructed in limestone ashlar, with greenstone rubble used in the 20th-century re-building; it also contains some red brick.
The convent was designed by noted architect Anthony J. DePace (1892–1977), and is a four-story building clad in granite ashlar and limestone.