St. Paul's was erected as a memorial to Sir Charles James Napier, the British general who led forces to conquer the Sindh in 1843.

The British forces under General Charles James Napier captured Manora in 1839, as part of their Sindh campaign making it their military base of operations.

[3] When the church was built it was constructed from limestone from the Hands' Hill Quarries (located 3 miles from Karachi and 5 from Kiamari) and the lower-grade but cheaper Manora conglomerate.

[3][4] It features an Early English architectural style, and consists of a nave, without aisles, a vestry and a small assembly hall.

The restoration process took longer than expected, remaining pending for a year due to lack of finances before resuming and completing the final stage of work in 2008.