Sr Mary's consists of a nave and chancel with a square embattled tower at the west end.
The nave is ceiled, and has a gallery on the north and west sides.
The building is substantial but plain, and may be said to partake of that economic style of Gothic ecclesiastic architecture which prevailed during the first half of the 19th century.
The tower, with the exception of the upper portion extending a few feet downward from the battlements, is of considerable antiquity, and although slightly out of perpendicular, is in substantial repair.

Both the interior and exterior of the church were repaired or restored in the mid-19th century, mainly through the efforts of Canon W. Latham Bevan, who was supported by the congregation and friends.
The improvements were commenced 1866-7 by the erection of a porch at the principal entrance, and enlargement of the chancel by the addition of an apsis, of a horseshoe form, together with an organ chamber and vestry.
The chancel was at the same time made available for seats, by the removal of a single arch of small proportions, which divided the chancel from the nave, and substituting the present three gothic arches, opening the full width of the chancel.

In form, the pulpit is octagonal; it is constructed of alabaster and marble, the lower part being arcaded and carried upon polished marble pillars; the upper portion is panelled in quatrefoils filled with medallions of our Saviour and the four evangelists.
Round the pulpit is the following inscription: "Erected by Francis Robert Trumper, to the glory of God, in memory of his beloved wife Emma, who died Nov. 15th, 1865, and of her mother, Fortune Higgins, who died April 28rd, 1860."

In the 1870s, the pews were removed, substituted by open seats, and the former high front to the galleries replaced by one of a light and ornamental character.
The latter portion of the work was effected in the years 1878-4.

Three stained windows in the apse, to the memory of Emma Meredith, were also presented by Trumper.
The current stained windows include Scenes from the Passion of Christ (circa 1870) in the sanctuary apse, Abraham by the artist Arthur J. Dix (1906) on the south wall of the nave, adjacent to pulpit, and "Virgin and Child" (circa 1950) on the north wall of the nave.
Sr Mary's consists of a nave and chancel with a square embattled tower at the west end. The nave is ceiled, and has a gallery on the north and west sides. The building is substantial but plain, and may be said to partake of that economic style of Gothic ecclesiastic architecture which prevailed during the first half of the 19th century. The tower, with the exception of the upper portion extending a few feet downward from the battlements, is of considerable antiquity, and although slightly out of perpendicular, is in substantial repair. 
Both the interior and exterior of the church were repaired or restored in the mid-19th century, mainly through the efforts of Canon W. Latham Bevan, who was supported by the congregation and friends. The improvements were commenced 1866-7 by the erection of a porch at the principal entrance, and enlargement of the chancel by the addition of an apsis, of a horseshoe form, together with an organ chamber and vestry. The chancel was at the same time made available for seats, by the removal of a single arch of small proportions, which divided the chancel from the nave, and substituting the present three gothic arches, opening the full width of the chancel. 
In form, the pulpit is octagonal; it is constructed of alabaster and marble, the lower part being arcaded and carried upon polished marble pillars; the upper portion is panelled in quatrefoils filled with medallions of our Saviour and the four evangelists. Round the pulpit is the following inscription: "Erected by Francis Robert Trumper, to the glory of God, in memory of his beloved wife Emma, who died Nov. 15th, 1865, and of her mother, Fortune Higgins, who died April 28rd, 1860."
In the 1870s, the pews were removed, substituted by open seats, and the former high front to the galleries replaced by one of a light and ornamental character. The latter portion of the work was effected in the years 1878-4. 
Three stained windows in the apse, to the memory of Emma Meredith, were also presented by Trumper. The current stained windows include Scenes from the Passion of Christ (circa 1870) in the sanctuary apse, Abraham by the artist Arthur J. Dix (1906) on the south wall of the nave, adjacent to pulpit, and "Virgin and Child" (circa 1950) on the north wall of the nave.
St Mary's Church, Hay-on-Wye