The present building was constructed between 1672 and 1679 to a design by Sir Christopher Wren, at a cost of £7,692.
It is rectangular in plan,  with a dome and an attached north west tower.
 Entry to the church is up a flight of sixteen steps, enclosed in  a porch  attached to the west front.
Wren also designed a porch for the north side of  the church.
This was never built,  but there once was a north door, which was bricked up in 1685, as it let in the offensive smells from the slaughterhouses in the neighbouring Stocks Market.

The walls, tower,  and internal columns   are made of stone, but the dome is of timber and plaster with an external covering of copper
The 63 feet (19 m) high dome is based on Wren's original design for St Paul's, and  is centred over a square of twelve columns of the Corinthian order.
The circular base of the dome is not carried, in the conventional way, by pendentives formed above the arches of the square, but on a circle formed by eight arches that spring from eight of the twelve columns, cutting across each corner in the manner of the Byzantine squinch.
This all contributes to create what many consider to be one of Wren's finest church interiors.
Sir Nikolaus Pevsner lists it as one of the ten most important buildings in England.

The contemporary carved furnishings of the church, including the altarpiece and Royal Arms, the pulpit and font cover, are attributed to the carpenters Thomas Creecher and Stephen Colledge, and the carvers William Newman and Jonathan Maine.

In 1760 a new organ was provided by George England.

In 1776 the central window in the east wall was bricked up to allow for the installation of Devout Men Taking Away the Body of St Stephen, a painting by Benjamin West, which  the rector, Thomas Wilson, had commissioned for the church.
 The next year Wilson set up in the church a statue of Catharine Macaulay, (then still alive) whose political ideas he admired.
 It was removed after protests.
 The east  window was unblocked, and the picture moved to the north wall, during extensive restorations in 1850.
The present building was constructed between 1672 and 1679 to a design by Sir Christopher Wren, at a cost of £7,692. It is rectangular in plan,  with a dome and an attached north west tower.  Entry to the church is up a flight of sixteen steps, enclosed in  a porch  attached to the west front. Wren also designed a porch for the north side of  the church. This was never built,  but there once was a north door, which was bricked up in 1685, as it let in the offensive smells from the slaughterhouses in the neighbouring Stocks Market.
The walls, tower,  and internal columns   are made of stone, but the dome is of timber and plaster with an external covering of copper
The 63 feet (19 m) high dome is based on Wren's original design for St Paul's, and  is centred over a square of twelve columns of the Corinthian order. The circular base of the dome is not carried, in the conventional way, by pendentives formed above the arches of the square, but on a circle formed by eight arches that spring from eight of the twelve columns, cutting across each corner in the manner of the Byzantine squinch. This all contributes to create what many consider to be one of Wren's finest church interiors. Sir Nikolaus Pevsner lists it as one of the ten most important buildings in England.
The contemporary carved furnishings of the church, including the altarpiece and Royal Arms, the pulpit and font cover, are attributed to the carpenters Thomas Creecher and Stephen Colledge, and the carvers William Newman and Jonathan Maine.
In 1760 a new organ was provided by George England.
In 1776 the central window in the east wall was bricked up to allow for the installation of Devout Men Taking Away the Body of St Stephen, a painting by Benjamin West, which  the rector, Thomas Wilson, had commissioned for the church.  The next year Wilson set up in the church a statue of Catharine Macaulay, (then still alive) whose political ideas he admired.  It was removed after protests.  The east  window was unblocked, and the picture moved to the north wall, during extensive restorations in 1850.
St Stephen Walbrook