Built in the Gothic Romanesque revival style, the cathedral's consecration, in its present form, is dated to 1916.

[2] While Kalinago people originally called the region Sairi, French woodcutters named the city Roseau, in the 18th century.

The availability of a large plane of land on the south river bank also dictated the cathedral's location.

The church at Roseau was initially a small wood hut with a thatched roof made of locally available reed.

This stone pulpit was carved by prisoners who were kept in Devil's Island (located off the coast of French Guiana).

[2][9] In the year 1873, at the southeast end, the Chapel of St. Joseph came to be established along with a crypt where bishops and priests could be buried.

The steeple was added on the western end, which was built with stones brought from the old church at Point Michael, then demolished.

After 1925, only minor additions in the form of electrical connections, a public address system and a clock have been made.

[11] The Gothic Romanesque Revival-style building is constructed of volcanic rock,[3] both inside and out, and is built to withstand earthquakes.