[5][6][3] This chapel was split off from the rest of the parish following the construction of the city's second walls and gradually became the current church.

[1] By the early 21st century, it was in the process of being desacralised, and was threatened again with closure at the end of 2011, as part of a project to transform the building into a covered market.

[8] On 20 September 2014, however, following a decision by the Archbishop of Mechelen–Brussels, it was reopened for worship and placed under the responsibility of four young priests of the Fraternity of the Holy Apostles.

[11] The massive base in blue stone, much like the architecture of Brussels' Palace of Justice, is richly profiled and punctuated by powerful buttresses, crowned with gargoyles.

All in balance, the main façade, like the gables that close the slightly protruding transept, present a sort of Renaissance central altarpiece, framed by buttresses and surmounted by a triangular pediment and a square lantern.

In order to lighten such a massive structure, Poelaert systematically dug niches in the multiple buttresses, which he then topped with lanterns.

It presents homogeneous furniture, designed in neo-Renaissance style by the Goyers brothers of Leuven, to which were added the main works of the old church, such as the washbasin and the cupboards of the sacristy.