It is located on Clement's Lane, off King William Street and close to London Bridge and the River Thames.

By legend, Clement was martyred by being tied to an anchor and thrown into the Black Sea, which led to his adoption as a patron saint of sailors.

Now the patronage alternates with the appointment of each successive new parish priest (Rector), between the Bishop of London and the Dean and Chapter of St Paul's.

[5] In 1670, during the rebuilding of London that followed the fire, the parish was combined with that of St Martin Orgar, which lay on the south side of Eastcheap.

The new tower served as a rectory for St. Clement Eastcheap until it was sold and converted into offices in the 1970s; it still survives on the present-day Martin Lane.

In May 1840 Edward John Carlos wrote in The Gentleman's Magazine, protesting about the proposed demolition of St Bartholomew-by-the-Exchange and St. Benet Fink, following a fire in 1838 that had razed the Royal Exchange and damaged those two churches.

In his article, Carlos referred to earlier plans to reduce the number of City churches, from which we learn that in the 1830s St Clement's had been under threat of demolition.

The sweeping design of destroying a number of City churches was mediated in … 1834, and for the time arrested by the resolute opposition to the measure in the instance of the first church marked out for sacrifice, St. Clement Eastcheap, it may be feared is at length coming into full operation, not, indeed in the open manner in which it was displayed at that period, but in an insidious and more secure mode of procedure.

In 1872 William Butterfield, a prominent architect of the gothic-revival, substantially renovated St. Clement's to conform with the contemporary Anglican 'High Church' taste.

[9] The renovation involved removing the galleries; replacing the 17th-century plain windows with stained glass; dividing the reredos into three pieces and placing the two wings on the side walls; dismantling the woodwork to build new pews; laying down polychrome tiles on the floor, and moving the organ into the aisle.

So too does St Clement Danes Church, Westminster, whose bells ring out the traditional tune of the nursery rhyme three times a day.

Thus, it would appear that the name of St. Clements was selected by the rhymer simply for its consonance with the word ‘lemons’, and it now seems more likely that the melody called ‘Oranges and Limons’ predates the rhyme itself.

A small churchyard remains to the east of St. Clement's hemmed-in by the backs of office buildings and contains tombstones whose inscriptions have, over time, become illegible.

[14] She, not repulsed, with tears that ceased not flowing And tresses all disordered, at his feet Fell humble, and, embracing them, besought His peace.

The altar, with cherubs for legs, dates from the 17th century, as does the reredos, which was decorated during the 1930s restoration of the building in a style reminiscent of Simone Martini.

The pulpit also dates from the 17th-century, and is made from Norwegian oak, topped with an hexagonal sounding board, with a dancing cherub on each corner.

The cover's ornate decoration, a carved dove holding an olive branch surrounded with gilded flames, so delighted William Gladstone, it is said, that he took his grandchildren to see it.

One of the rectors of St. Clement's, Benjamin Stone, who had been presented to the living by Bishop Juxon, being deemed "too Popish" by Oliver Cromwell, was imprisoned for some time at Crosby Hall.

(Thornbury, volume 1) In this church Josias Alsopp, who had succeeded Stone as rector in the early Restoration years of the 17th century, was heard preaching by Samuel Pepys who noted the following in his diary for 24 November 1661: Up early, and by appointment to St. Clement lanes to church, and there to meet Captain Cocke, who had often commended Mr. Alsopp, their minister, to me, who is indeed an able man, but as all things else did not come up to my expectations.

[4] Immediately next to the church in Clement's Lane is a memorial stone to Dositej Obradović (1742–1811), a Serbian statesman and man of letters who became Serbia's first Education Minister.