The late C15 N aisle E window has a pedimental head and three lights
the S aisle E window is also late C15 and has three lights under a square head.
There is an early C16 door set into a buttress for the S chapel.
The N aisle has five C14 windows in the N wall.
That towards the E was reset in the C15.
The W window of the N aisle is also C15.
The N door is C14 and has moulded jambs and a hood mould with head stops.
The door itself is C15 and has trellis framing.
The brick N porch was added in the early C16 and has a crow-stepped gable.
The S aisle has seven windows on the S, all of three traceried lights in 4-centred heads with a similar design, but the eastern 3 are apparently c.1520
the rest late C15.
The W window is also C15.
There is are early C16 S doors, one between in a buttress between the second and third windows from the east, the other covered by the S porch.
The S porch is dated 1523 and has an embattled parapet.
The porch roof has early C16 moulded wall plates.
The early C16 S door has chamfered jambs and a three centred arch.
The early C16 linenfold doors were reset from the outer to the inner opening in 1930.
The embattled W tower is of three stages, the lower part C14
the upper parts C15.
The C14 W window has a steeply angled head, possibly a reworking, and reticulated ogee tracery.
There are single light C15 windows in the second stage, and two-light C15 windows in the upper stage.
The western six bays are C14.
At the W end of the N aisle, a C14 niche, formerly outside, is reset.
It has moulded jambs, a triangular head, and a carved and crocketed border.
The western six bays are c1500, and the eastern three early C16.
The tower arch is C14 and has two moulded orders on plain responds.
The internal staircase in the NW corner of the tower has a C15 door with studded iron bands.
There is a C15 piscina in the N aisle, and an aumbry of 1954.
Pulpit of 1877 by J Forsyth.
Very rich, of Caen stone with marble panels and shafts, and carved figures in canopied niches.
Some good C19 glass, including E window of 1874 and S chapel E window of 1881 by Clayton and Bell, N chapel E window 1884 by Jones and Willis and another N four window of 1879 by Cox and Sons.
Small brass of c1500 with a Virgin and Child, found in the churchyard in 1977.
Wall tablets include an early C19 tablet to the Scott family including Rev. Alexander Scott, chaplain on HMS Victory at Trafalgar, and another to George and Lydia Middleton, d. 1680.
There are memorials for both WWI and WWII.
The nave, chancel, N aisle and lower part of the W tower were built in the mid C14.
The upper part of the tower was added or rebuilt in the mid C15, and in the late C15 the N aisle was lengthened to create a N chancel chapel.
The S aisle was added or perhaps entirely rebuilt c.1500
lengthened in the early C16 to form a S chancel chapel.
The N and S porches are also early C16.
At least some of the work in the C16 was paid for by Jon Harvey, vicar, and Thomas Ratcliffe, Lord Fitz Walter, and bequests from parishioners are also recorded.
New furnishings and pews were installed in the late C16
C17, but with the exception of the chandelier, these do not survive and were probably destroyed in a fire in 1774.
Samuel Deeker, bricklayer and plasterer, was responsible for this restoration work, which cost £812/8/7.
SOURCES Buildings of England: Essex , 188-89 RCHME Essex IV, 17-19 Jefferies, C E, Notes on the Church of St Mary in Burnham-on-Crouch and on its History REASONS FOR DESIGNATION St Mary the Virgin, Burnham on Crouch is designated at Grade II* for the following principal reasons: * A large, fully aisled hall church of the C14-C16 with important surviving medieval fabric. * An unusual C18 plaster barrel vault, added after a fire in 1774. * Some good C19 fittings, including an elaborate pulpit by J Forsyth of 1877 and stained glass.