St Sadwrn, Llansadwrn, Carmarthenshire (PRN 1903)




Dyfed PRN 1903

RB No.  3446

NGR SN 6953 3146

Listed Building No. 10945

Grade B listed (1998) Grade II listed (2021)

First Listed in 1966. Last Amended in 1999.

Reasons for Listing: Included as a medieval church on probable Celtic site, with surviving medieval windows, though interior heavily restored.


Medieval church; 90% medieval core fabric.

A 5-cell church, medium-large. Consists of chancel, 2 bays; nave, 4 bays; south chapel, 2 bays, incorporating south transept, 1 bay; South porch; (former north transept); medieval.

Construction is in limestone rubble throughout. 70% of internal walls are rendered/plastered. Slated gable roofs. Medieval openings in all components, some blocked or altered; some blocked openings retain their surrounds. Extant medieval openings include the chancel east and north windows, the main south doorway, the south chapel south door, and the south porch door, benching, stoup and aumbry. Blocked arcades to south transept and chapel, medieval; blocked openings to former north transept, medieval, blocked west (and north?) doors, medieval. Double bellcote, medieval. Remainder of windows mid 19th century. Chancel arch, 1883-4. South transept buttresses, 1980s.

Roofs: 17th century, mid 19th century and 1883-4. Floors: 1883-4-20th century. Finishes: 18th century-1990.

Condition – fair. Weathered; plaster poor-fair in south chapel and transept; south transept south wall poor, leaning, and buttresses poor.

Archaeological potential – very good-excellent. Deep, wide external cutting around 40% of church, primary?, deepened and ?extended 1994 exposing footings; medium depth drain around 10% of church; floor levels raised in 50% of church; no underfloor void; known internal burials in 20% of church; evidence of former components beyond church; memorials significantly close to 10% of church.

Structural value (pre 19th century) – good. 90% medieval core fabric; medieval openings, open and blocked; medieval bellcote; medieval benching, stoup and aumbry; 17th century porch roof.

Group value – high. Landmark medieval church in hilltop location; central within village; very large, formerly circular churchyard with good memorials.


Phase 1 – Chancel and nave, 13th century.

Phase 2 – South transept and south porch (and former north transept) – 14th-15th century

Phase 3 – South chapel, c.1500.

(Phase 4 – North transept removed, openings blocked, south porch roof etc – 17th-18th century.)

Phase 5 – Restored mid 19th century, low impact; no new components.

Phase 6 – Restored 1883-4, low impact; no new components.


St Sadwrn, Llansadwrn, is a 5-celled church, of medium-large size. It retains approximately 90% medieval core fabric.

The present church consists of a 2-bayed chancel, a 4-bayed nave of the same width, a south chapel incorporating a south transept, and a south porch. Construction is in medium-sized limestone rubble throughout with some conglomerate, unsquared and uncoursed, with large medieval quoins. There are localised remains of 18th century render; most of the external pointing is from 1883-4, some 1990 ribbon pointing. The internal plaster finish in the south porch, south transept and chapel is early 20th century; in the nave from 1990; the chancel is unplastered, removed in 1990. Slated gable roofs, the chancel and nave probably always roofed continuously; the south chapel/transept roof lies at the same level. Roofs and floors are of various dates.

A north transept formerly lay north of the nave east bays; there is no physical evidence in the yard. A medium-deep external cutting runs along the north and west walls, possibly primary, but deepened and concrete-lined (and extended?) in 1994; footings are exposed. A medium-depth secondary drain runs around the porch and transept west wall. The chancel and south transept/chapel floors have been raised, while there may be no underfloor voids. Known burials occupy the south chapel. External memorials lie significantly close to the south chapel south wall.

In its basic form the surviving fabric has changed little since the medieval period, but the former north transept has gone. There are a large number of medieval openings and features, but many of them have been blocked or altered. The nave and chancel are of the same width and probably contemporary, but in the absence of contemporary detail cannot be closely dated; a 13th century date cannot be ruled out. The south door is a plain 2-centred opening, unlike the south porch door and probably earlier. A joint in the north wall suggests the former presence of a north door. The blocked west door has a segmental head (NLW, SD/F/416), of any date. A blocked window in the south wall of the nave west bay is interrupted by a later window but retains part of its surround suggesting a date of c.1500. A 3-light window with Perpendicular detail formerly lay above the west door but has been blocked (ibid.; see also RCAHM, 1917, 183); it may have been medieval. The west wall bellcote is a massive gabled structure with 2 plain, square-headed openings of broadly medieval date. There may have been a chancel arch; one was present in 1883 but was rebuilt (ibid.).

A surviving single-light window in the north wall of the chancel east bay has a semicircular head of 15th-16th century date. The chancel east window has a square surround of c.1500 but the 3 lights have been rebuilt.

The south porch is of similar construction. It has retained its crude medieval upstand, and the doorway has a 2-centred head of limestone ashlar. There is internal masonry benching on the side walls. A stoup on the nave south wall has a weathered bowl which may originally have been scalloped. A plain square aumbry lies in the west wall. The porch and all features may be broadly dated to  c.1400.

The site of the former north transept is represented by an area of infill in the north wall of the nave east bay, and by a vertical scar on the chancel west bay; there is a blocked doorway either side, one in the nave with a semicircular head of probable later medieval date, and one in the chancel west bay with a plain lintel. The communication with the chancel suggests that the transept may have been a later medieval addition, as a chapel, and possibly contemporary with the south transept.

The south transept is no longer transeptal, but open to the south chapel with which it is roofed continuously. However, the two exhibit differing quoining and are probably not contemporary. No features survive in their original form and the arcade into the nave, a plain semicircular segmental arch, has been blocked. It may be a product of the later medieval period of enlargement of churches, and be contemporary with the south porch of c.1400 (and the former north transept).

The south chapel has features of c1500, which may represent its date of construction and it probably absorbed the transept from the first. The 2-bayed arcade to the chancel is plain, with segmental-headed arches now blocked. The eat window, formerly of 3 lights, is similar to the chancel east window and of c.1500 but later altered and reduced to 2 lights. The jamb and lintel of a similar blocked window survive in the south wall. The south door jambs appear to be contemporary, and the door is still open, but the ‘segmental’ head is 20th century.

The post-medieval period is marked by the removal of the north transept and by the blocking of many openings. This had occurred by the 18th century; the infill and blocking lying beneath the external render of that period, remains of which survives in many areas. The nave west door and window, the east windows, the south door and the chapel door remained open. It is not known when the south transept/chapel was blocked off from the chancel; the doorway in the blocking is a simple square opening which cannot be dated, but it had occurred by the mid-19th century (ibid.). The nave arcade was not blocked until 1883-4 (ibid.). The south porch roof, of oak collar-rafter trusses, may be 17th century.

The church floor appears to have lacked any floor-covering into the 18th century, when ‘it has never been paved’ (Evans, 1918, 26). However, glazed floor tiles were in the possession of an early 20th century vicar of Llansadwrn, which had been found ‘worked up in the wall over an arched door that had been taken down; formerly perhaps the church had been paved with them’ (Anon, 1918, 37). Where was this door? The windows were apparently ‘out of repair’ in 1672 (Evans, 1919, 212; Evans, 1921, 66). The roof was repaired in 1705 (Evans, 1918, 26), when a pulpit and desk are mentioned. The south chapel was ‘out of repair’ in 1720 (Evans, 1917, 14). The present roof over the south chapel and transept is similar to the porch roof but later (early 19th century?); the south walls were heightened to receive it.

There was some low-impact restoration around the middle of the 19th century when the east windows were altered as described. New windows, similar to the old, were inserted – 1 in the nave west bay north wall, 2 in the nave south wall and 2 in the chapel/transept south wall. The chancel had been walled off from the chapel, but not the nave. The west door was still open. In 1883, a partition separated transept from chapel, the chancel, nave and transept were seated with box pews, and there was a gallery over the nave west bay (NLW, SD/F/416). The pulpit seen by the RCAHM in 1917, of probable 18th century date (RCAHM, 1917, 183), may not have been from Llansadwrn; a very different, octagonal pulpit is shown on the contemporary plan (NLW, SD/F/416.)

The church was restored again in 1883-4 (ibid.), to the specifications of the architects Middleton and Son, Westminster and Cheltenham. The restoration was again low-impact and some of the proposed work appears not to have been undertaken (eg. it as proposed to demolish and rebuild the porch and bellcote). The west door was blocked. The existing chancel arch was removed and the present 2-centred, moulded chancel arch was inserted. The chancel and nave were refloored, with tiled passages and woodblock, but the latter appear not to be suspended. The chancel and nave were reroofed in softwood, the former with scissors-braced common rafters and the latter with king-post trusses with strutted collars. The interior was replastered, all the existing plaster apparently being removed. The nave and chancel were reseated in softwood, and a new altar rail and pulpit were fitted.

There has been a considerable amount of subsequent work. The medieval west window (RCAHM, 1917, 183) was blocked during the earlier 20th century, its surround removed and it is now represented by an area of cemented rubble. A pitch-pine ceiling was inserted in the chapel, the chapel was replastered, its floor was raised and concreted and a new plaster partition erected, again during the earlier 20th century. The porch was given a flagged floor laid directly on the substrate. A new altar table and credence were fitted, and the pulpit seen by the RCAHM (see above) removed and a plain octagonal softwood pulpit was installed.

During the 1980s, the leaning south chapel south wall was given two buttresses under an MSC scheme (churchwarden, pers. comm.); they are of poor quality. The plaster was stripped from the chancel walls, and the nave replastered, in 1990 (ibid.).

The font has a an octagonal bowl and stem, of limestone, and of later medieval date (15th century – RCAHM, 1917, 183).

The church was Grade B listed in 1998.

Grade II listed (2021)

First Listed in 1966. Last Amended in 1999.

(The south chapel is traditionally known as the ‘Abermarlais Chapel’ after its patrons, and possible founders, of the nearby Abermarlais Mansion.)


There is evidence for pre-conquest religious use of the site –

Celtic dedication; churchyard formerly circular, large.

St Sadwrn, Llansadwrn, was not a parish church during the post-conquest period, but a chapelry of the medieval Deanery of Stradtowy (Rees, 1933). The benefice was, with the neighbouring chapelry of Llanwrda, conferred upon the Premonstratensian Abbey at Talley by Rhys ap Gruffydd (‘Lord Rhys’) in 1176 (Price, 1879, 171). In 1539 ‘rectoria de Llansadurne cum capella de Llanurda’ was valued at £15 11s 6d (Owen, 1894, 48). Llansadwrn appears to have been by now regarded as a (parish?) church, while Llanwrda is referred to as a chapel (Owen, 1893, 324). The union with Llanwrda continues into the 1990s.

At the dissolution the possessions of the abbey, including Llansadwrn and Llanwrda, fell to the crown. The patronage of Llansadwrn vicarage was granted by Henry VIII firstly to Sir Rhys ap Gruffydd, and upon his conviction for treason, to Thomas Jones, Kt., of Haroldston, Pembs. (Williams, 1932, 54). It remained in private patronage.

In 1833 the living, a discharged vicarage of the Archdeaconry of Carmarthen, was annexed with Llanwrda and in private patronage. It was rated in the king’s books at £6 10. 0d, and endowed with £400 royal bounty (Lewis, 1833).

In 1998 St Sadwrn, Llansadwrn, was a parish church. The living was a vicarage, held with Llanwrda and Manordeilo (Benefice 676) in the Archdeaconry of Carmarthen, Rural Deanery of Llangadog and Llandeilo (St Davids, 1997-8).


Map Evidence

NLW, Ordnance Survey 1:2500, First Edition, XXVI.6, 1887.

NLW, Ordnance Survey 1:2500, Second Edition, XXVI.6, 1906.

NLW, Parish of Llansadwrn, Tithe Map, 1837.

Rees, W., 1933, South Wales and the Border in the XIVth century.

Church in Wales Records

St Davids, 1997-8, Diocesan Year Book.

NLW, SD/F/416, Faculty – Restoration of church, 1883.

Parish Records, Carmarthenshire Record Office, Carmarthen

(CPR/107 – Llansadwrn)

Unpublished Accounts

Sambrook, R. P., and Page, N. A., 1995 (i), The Historic Settlements of Dinefwr (Unpublished client report; copy held with Dyfed SMR).

Sambrook, R. P., and Page, N. A., 1995 (ii), The Historic Settlements of Dinefwr: Gazetteer (Unpublished client report; copy held with Dyfed SMR).

Printed Accounts

Anon., 1918, ‘Llansadwrn Vicarage: Bangu Bell’, Trans. Carms. Antiq. Soc. Vol. 11.

Evans, G. E., 1917, ‘Churchwardens’ Presentments’, Trans. Carms. Antiq. Soc. Vol. 11.

Evans, G. E., 1918, ‘Churchwardens’ Presentments’, Trans. Carms. Antiq. Soc. Vol. 12.

Evans, G. E., 1919, ‘Miscellanea’ Archaeol. Cambrensis, Vol. XIX, Sixth Series.

Evans, G. E., 1921, ‘Churchwardens’ Presentments’, Trans. Carms. Antiq. Soc. Vol. 14.

Jones, M. H., 1915, ‘The Ecclesiastical Place-names of Carmarthenshire’, Archaeol. Cambrensis, Vol. XV, Sixth Series.

Lewis, S., 1833, A Topographical Dictionary of Wales.

Owen, E., 1893, ‘A Contribution to the History of the Premonstratensian Abbey of Talley: Part I’, Archaeol. Cambrensis, Vol. X, Fifth Series.

Owen, E., 1894, ‘A Contribution to the History of the Premonstratensian Abbey of Talley: Part II’, Archaeol. Cambrensis, Vol. XI, Fifth Series.

Price, D. L., 1879, ‘Talley Abbey, Carmarthenshire’, Archaeol. Cambrensis, Vol. X, Fourth Series.

RCAHM, 1917, Inventory: Carmarthenshire.

Salter, M., 1984, The Old Parish Churches of South West Wales.

Williams, J. P. R., 1932, ‘Llansadwrn: Grant of Advowson and Manor’, Trans. Carms. Antiq. Soc. Vol. 23.

Updated: July 2023 – Peter K Rowland.

Heneb - The Trust for Welsh Archaeology