Rebuilt circa 1300, restored in 1862 and 1890.
slate roof with decorative ridge tiles, gable-end parapets and a cross finial at the east end.
Nave: circa 1300, extended to the west in 1912.
There are three pairs of C19 cusped lancets, the remains of a wall memorial at the eastern end and a brick chimney east of the western- most bay.
South porch: rebuilt in 1865 incorporating much of the C15 woodwork.
It has a 3-light east window with a hoodmould and returns, a circa 1300 reused cusped lancet in the north side,
in the south elevation is a C14 square-headed window of two ogee-arched lights and a C19 chamfered pointed doorway.
Attached to the south elevation is an early C19 wall memorial to the Bromage family by R Davis.
INTERIOR: there is a C14 recess with double hollow chamfered jambs in the south wall of the transept which probably once led to, the rood loft stairs.
Nave has a C14 ashlared arch-braced collar truss roof with cusped struts, collars and principals and two subsidiary tie-beams.
The chancel has C15 hollow-chamfered wall-plates.
The stone font is C12 and has a tapering cylindrical bowl with a chamfered base.
This 12th century font inside the nave has a tapering cylindrical bowl that stands on a chamfered base.
The five- sided timber pulpit is C19.
Here is the five-sided timber pulpit inside the nave at St. Mary's church in Brilley.
In the north transept is a late C18 memorial to Walter Harris, died 1791.
Glass: C19 glass in chancel and a north nave window