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Church of St Mary

A Grade II Listed Building in Llanerchymedd, Isle of Anglesey

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Latitude: 53.33 / 53°19'48"N

Longitude: -4.3775 / 4°22'38"W

OS Eastings: 241772

OS Northings: 384093

OS Grid: SH417840

Mapcode National: GBR HMKW.X66

Mapcode Global: WH42D.QKPH

Entry Name: Church of St Mary

Listing Date: 12 May 1970

Last Amended: 16 March 2001

Grade: II

Source: Cadw

Source ID: 5371

Building Class: Religious, Ritual and Funerary

Location: Set back, within a rectangular churchyard, from the S side of the Market Square in the centre of the village of Llanerchymedd.

County: Isle of Anglesey

Community: Llannerch-y-medd

Community: Llannerch-y-Medd

Locality: Llanerchymedd

Built-Up Area: Llanerchymedd

Traditional County: Anglesey

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Predominantly Victorian church which retains the tower of its predecessor: the lower stage of the tower with its east doorway are thought to be C12: upper stages later medieval. The church, except for the tower, was rebuilt in 1850, the architect Henry Kennedy of Bangor. The church was closed on inspection and in need of structural repairs to tower and roof.


Decorated style church comprising W tower with bellcote, nave, chancel and S porch. Built of rubble masonry with freestone dressings; slate roof with stone copings.
The oldest fabric of the church is retained in the W tower, the lower stage of which is C12. The lower stage of the tower now houses the vestry, and has narrow rectangular lights to N, S and W with narrow ventilation slots in the stage above. The upper, bell stage has pointed-arched, louvred openings to each face, each with cinquefoil tracery and hoodmoulds with bestial stops. There is an embattled parapet above a moulded string, the roof of the tower has a single gabled sanctus bellcote to the E.
The newer, mid C19, church has a raking plinth and each bay is articulated by stepped buttresses; the chancel with angled buttress to E. The windows are a mix of 2 and 3 lights, with cusped tracery and mostly pointed arches; there are rectangular-headed lights to the E end of the N and S walls of the chancel and the E window has 3 trefoil-headed lights in a pointed-arched frame with hoodmould.
The S porch has pointed-arched doorways with chamfered frames, the inner doorway has a boarded door with large ornate hinges; side walls have narrow rectangular lights.


The interior was not inspected at the time of the survey. Said, by RCAHMW to contain a small octagonal gritstone font with a chamfered base, probably C14; and brass memorial tablet to Michael Llwyd, 1748/9. Doorway between tower and nave described as round-headed with square abaci.

Reasons for Listing

Listed as a good mid C19 church which retains fabric of an early church within the W tower which is one of the few early west towers on the island. The Church of St. Mary is of an unusually large scale for an Anglesey church, reflecting the importance of the market town of Llanerchymedd at the time of its construction. Forms a group with the adjacent lychgate.

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Other nearby listed buildings

  • II Lychgate to Church of St Mary
    Located at the N entrance to the rectangular churchyard to the Church of St Mary. At the S side of the Market Square in the centre of the village of Llanerchymedd.
  • II Brynkir
    Slightly set back, and built at an angle to, the W side of the B5111 at the junction with the E end of the High Street in the village of Llanerchymedd.
  • II Capel Peniel and chapel house
    Located at the NE side of the B5111 leading SE from the village of Llanerchymedd.
  • II Cottage, Bachau
    Built at right angles to the S side of the country road lead E out of the village of Llanerchymedd at Bachau.
  • II Church of St Ceidio
    Set back, within a raised circular churchyard, from the W side of a country road leading NW from the village of Llanerchymedd.
  • II Ty Hen Newydd
    Set back from the E side of the B5111 on the southern approach to the village of Llanerchymedd. The farmhouse forms the centrepiece of the farmstead; the main farm range is formed in a semi-circle to
  • II Boiling house and wall of former pigsty range at Ty Hen Newydd
    Set back from the E side of the B5111 on the southern approach to the village of Llanerchymedd; the brewhouse is in alignment between the centre of the curved agricultural range, and the farmhouse.
  • II Agricultural range at Ty Hen Newydd
    Set back from the E side of the B5111 on the southern approach to the village of Llanerchymedd; the curved agricultural range is directly behind (E) of the farmhouse.

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