The first mention of the lost church of St Mary Magdalene Old Fish Street is in 1181 which mentioned the church being in the fish market near St Pauls. We can see it on the copperplate map of 1555 – which also shows just how many other churches there were in the immediate vicinity of St Pauls. The parish map below shows the boundaries.
St Mary Magdalene Old Fish Street was destroyed in the Great Fire of 1666 and rebuilt by Wren in 1687 when the parish was combined with that of St Gregory by St Pauls. Then in 1886 disaster struck as a fire in a nearby warehouse broke out and severely damaged the church. It was decided under the Union of Benefices Act to pull down the remaining masonry and combine the parish with St Martin Ludgate
We know what the Wren church looked like from watercolours and etchings of the time shown below. But today there is very little to show and the area suffered heavy damage during the Second World War and was then completely redeveloped into Old Change Square. I have been unable to find any parish boundary markers or plaques that commemorate this church. The only thing is a fountain dedicated to St Mary Magdalene near the main road opposite St Pauls (see photo)