Egryn Abbey is a Grade II* listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 17 June 1966. House.

Egryn Abbey

WRENN ID
tilted-pier-holly
Grade
II*
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
17 June 1966
Type
House
Address
Egryn Abbey, Llanaber, Dyffryn Ardudwy, Gwynedd
OS grid reference
SH 595 203
Coordinates
52.76224, -4.08339
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Egryn Abbey is a house of probable late medieval origin, with a Victorian wing added later. The original house is aligned east-west, with the Victorian wing situated at the western end, likely on the site of the upper end. The earliest part of the house is constructed of coursed rubble stone with substantial stone footings, displaying an exposed timber wall-plate cut by dormer windows. The roof is covered with random slate, and the main facade faces south. To the left of the original range is the gable of the Victorian wing. An entrance to the cross-passage is found at the left of the original range, featuring a moulded two-centred arched doorway constructed from locally sourced freestone. The original hall is suggested by two four-light mullioned and transomed windows with ovolo mouldings and hood moulds, using local freestone. A similar window lights the inner room to the east, alongside two three-light mullioned windows that do not align directly above. A third window above the doorway either appears to be a later addition or replacement. A straight joint marks the division of the later bay on the right-hand side. The rear elevation showcases a large gabled chimney projection and a lean-to porch. A nine-pane window and doorway appear in the added eastern bay, which also features a small lateral chimney.

The 19th-century wing is built with well-coursed and squared stone, topped with a slate roof of an asymmetrically pitched design at the rear, covering the staircase. The wing presents a neatly symmetrical facade, with a central doorway partly glazed with coloured glass in margin lights and featuring a lattice-glazed overlight. This is flanked by sixteen-pane sash windows, with three similar windows on the first floor.

The interior largely retains the late medieval ground plan, showing a cross-passage, a hall with an inner room beyond the dais partition (originally two rooms), and the Victorian wing indicating the position of the original outer room(s). The dais partition is constructed of post-and-panel work, continuing through the full height, although bisected by a hall ceiling. Two doorways remain; the larger doorway to the south likely served a parlour originally. Cupboards built against the wall, separating the hall from the cross-passage, conceal the lower sections of a box-framed aisle truss that exhibits cluster-moulding to posts. The continuation of this truss is visible in the upper partition and roof space, including capitals to post-mouldings, and elaborately cusped bracing to the tie-beam. Ornate cusped detailing is found above and below the collar. The central open truss of the hall (also visible in the roof space) is of arched-braced collar type, also with cusped decoration at the apex and a central boss on the underside; a cusped louvre truss is positioned alongside. Cusped wind braces are present on the flat purlins. A large lateral fireplace has a segmental arch with traces of painted decoration. The Victorian wing retains much of its original detail, including six-panelled doors, a staircase with scrolled tread ends and a swept rail, and moulded cornices.

Local climate

Egryn Abbey sits in one of the wettest parts of the UK, with an average of 1,460 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 31 freeze-thaw cycles a year, fewer than 62% of listed buildings. Of these, 14 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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  5. Stable, cartshed and attached cowhouse at Egryn Grade II 54 m
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