This 12th century church near the corner of Milk Street and Cheapside was destroyed in the Great Fire of London in 1666 and never rebuilt. The parish was combined with St Lawrence jewry and the site was combined with another church lost in the fire – All Hallows Honey Lane – to make a new market space called Honey Lane Market. We have some idea of what this small church looked like from the Agas map of 1550 which shows the tower of the church in “Mylke Streat”. ( see below)
There was very heavy damage here in the Blitz of 1940, so now there are only modern buildings. But you can still find traces the lost church of St Mary Magdalene Milk Street in the parish boundary markers that show the extent of the old parish. There are 4 of these as shown in the photos below.
The wikipedia page for St Mary Magdalene Milk Street
St Mary Magdalene Milk Street Parish details