C15 aisle-widening and fenestration.
Shortened at both east and west ends perhaps also in the C15 or shortly after.
The tower is small and has a west doorway which includes Norman remnants.
The south doorway has small gabled canopy over it which protects a plaster royal arms of the period 1603-1707.
The dominant feature is the C12 arcading.
At the west end are the remains of the jambs of the arch to the previous medieval tower.
It was repaired during Dykes-Bower's restoration and has Corinthian pilasters, carved foliage around oval, rectangular and arched panels: sadly the Commandments etc have been painted over.
Beside the font is an ornate wrought-iron bracket for the font cover made up of former mace and sword rests.
Near the south door is a Georgian royal arms.
C17 centuries.
At the east end of the south aisle is that to Thomas Andrew , twice mayor of Exeter, a recumbent effigy on a tomb-chest under an ogee-headed canopy, and with four angels holding shields on the base.
The monument to Thomas Walker and wife shows life-size kneeling figures facing one another.
The Norman arcade shows there was an imposing church here at an early date.
SOURCES: Anon, St Mary Arches: History and Architecture, 2005 (leaflet) Cherry, B, and Pevsner, N, The Buildings of England: Devon, 391-2 REASONS FOR DESIGNATION: The church of St Mary Arches, Exeter, is designated at Grade I for the following principal reasons: * It is of outstanding interest as an important church surviving from medieval Exeter and is particularly noteworthy for its C12 arcades which are unique among Devon churches.
The building has a complex and unusual structural history * It has a number of fixtures of considerable interest, especially two sets of royal arms, and a fine collection of monuments * It clearly show the impact of several distinct phases of building, and its post-Blitz repair has been carried out with great sensitivity