St Mary Northgate, The Borough. This elevation built in the 1830s. Originally, the chancel extended across the road on top of the Northgate, the church being on the line of the city wall

St Mary Northgate is Anglo-Saxon in origin. The Roman city wall passed through here, and it is possible that elements of that wall are embedded in the church. To the rear, a surviving fragment of wall is thought to include the Roman wall to its full height. The Normans built a stone gate at this point, on which St Mary's chancel sat.

At the end of the 18th Century, all the main city gates (except the Westgate) were demolished, with the loss of the chancel. Soldiers and their families from the nearby barracks heavily used the church, until the garrison chapel went up in the 1850s. The church was heavily renovated in the 1830s. After 1887, St Gregory's took over the parish.

After its closure in 1912, St Mary's was used as a hall for many years, and was the 'British Restaurant', one of many set up by the Government to provide cheap meals in wartime, until the 1950s. Today, the King's School uses the building.

Records in Canterbury Cathedral