[4] Holy Trinity is constructed in limestone with Collyweston stone slate roofs.

The lowest stage contains a blocked, round-headed west door, and small windows on the north and south sides.

On the summit is a plain parapet with a single gargoyle on the north face.

In the south wall of the chancel are two three-light windows with Decorated tracery, and a corbel table with carved heads.

[1] The 19th-century stained glass in the east window is by Clayton and Bell, and that in the south wall of the chancel, dated 1921, is by Kempe and Co.[1][2] The memorials include those to the Stafford and O'Brien families who lived at Blatherwyke Hall.

There is also a wall memorial to the poet Thomas Randolph who died while visiting Blatherwyke Hall.

[2] The memorial was made by the sculptor Nicholas Stone in about 1640, and was commissioned by Sir Christopher Hatton.