[1][3] The new features of the church were designed by Robert Atkinson as a modern build based on Wren's uncompleted plans for All Hallows Lombard Street.

The foundation stone was laid by the Bishop of London, Arthur Winnington-Ingram, on 11 July 1939, and the new church was consecrated on 9 November 1940 by his successor Geoffrey Fisher.

[3] The main body of the church is a brick-built basilica with a narthex leading through the cloister to the old tower to the north, and to St Martin's Chapel to the south.

The Christopher Wren-designed tower houses a peal of ten bells, including some of those that were originally hung at St Dionis Backchurch, then at Lombard Street.

[8] Inside the tower a massive oak gateway is preserved; it had been placed at the Lombard Street entrance to the old church after the Great Fire of London, and is decorated with skulls and crossbones.

Its marble base is decorated with carvings of cherubs, and its tall wooden cover is topped by the figure of Charity welcoming children.

The church has an organ built by Renatus Harris in 1695, which is installed in the western gallery per Wren's plans for it, never before realised.