Its entrance, on the small north arm, has a glass door with a curved broken pediment and sidelight.
Through a broken pediment the squared cupola rises to the top.
The balduchin is in the form of a broken pediment.
His façade was to have eight columns and a broken pediment over the entrance.
This is then flanked by a double broken pediment.
The two entrances are distinguished by massive columns and broken pediments.
In the lower part of the wall are two painted tabernacles supporting the broken pediments described above.
On the southern side sits a broken pediment with a griffin peering out below.
The central three bays project forward and are surmounted by a broken pediment.
Wren's east end has a venetian window, now blocked up, and a broken pediment.