[3] Pearson's plans called for a red brick structure, vaulted ceilings, and extensive interior stone sculpture in a style reminiscent of 13th-century Gothic architecture.

In 1878, two years prior to the dedication of the church, contemporary historian Edward Walford had already referred to St Augustine's, Kilburn, as "one of the finest examples of ecclesiastical structures in London.

The chancel and sanctuary are surrounded by densely-carved sculptural forms representing the Passion, Crucifixion, Entombment, and Resurrection of Christ, as well as the Apostles, saints and other religious iconography.

In the scene, Nesbitt is hit by a poison dart, and begins hallucinating about one of the stained glass figures (a knight) coming alive and trying to kill him.

[10] The interior of St. Augustine’s Church was used in the 2024 Netflix Series Black Doves as the location for a meeting between Helen Webb (Keira Knightley) and Reed (Sarah Lancashire) that took place in the gallery during a Christmas Midnight Mass while the choir sang Once in Royal David’s City.