Church of St Caian

The Church of St Caian is a simple rural church constructed from rubble masonry, topped with a slate roof that features a west gable bellcote with a pointed opening. The nave and chancel are not structurally divided. The east window, dating from the late 14th century, consists of one ogee light with simple tracery set within a pointed arch frame that has a moulded label. The main entrance is a south doorway from the 15th century, which has casement moulded jambs and a two-centred head within a square frame, also featuring a moulded label and spandrels adorned with trefoils. The south wall includes two 17th-century windows with paired square-headed lights and chamfered jambs. The north doorway, of uncertain date, has been blocked in the late 19th century, while a single 17th-century north window has two rectangular lights with hollow chamfered jambs and a moulded label. A small west window, either from the 17th or 18th century, is a square-headed light with chamfered jambs.

Inside, the church has an exposed seven-bay roof supported by repaired 16th or 17th-century arch-braced collared trusses and paired purlins with angle braces. The chancel is raised by a single step and features a moulded rail on shaped balusters, with a panelled reredos beneath a moulded rail. The fittings are from the 19th century, including pews with lamb's tongue chamfered ends and a pulpit that incorporates deeply recessed reset 17th-century panelling. The font, dating from the 12th century, is a circular tub-shaped bowl with a central band of irregular chevrons.

The east window displays a depiction of Christ crowning a knight, accompanied by the inscription: "Well done thy good and faithful servant / Take unto you the whole armour of God." On either side of the window are marble memorial tablets: to the left, one commemorates Thomas Edward John Lloyd CBDL, PTG, JP who died in 1937, and his wife Rosamund Anna who died in 1948; to the right, another honors Robert Lloyd Esq TG who died in 1846, and his daughter Margaret who died in 1858.

On the north wall of the nave, there is a slate tablet dedicated to Thomas Maximillian who died in 1745, along with other late 19th and early 20th-century memorials for members of the Lloyd family of Plas Tregayan. Additional 20th-century Lloyd memorials can be found on the south wall of the nave, alongside a bronze memorial for John Prydherch who died in 1724 and his wife Anne who died in 1752.