Gwynfa is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 20 February 1978. House.
Gwynfa
- WRENN ID
- peeling-lintel-owl
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 20 February 1978
- Type
- House
- Address
- Gwynfa, Beaumaris, LL58 8BT
- OS grid reference
- SH 606 760
- Coordinates
- 53.26317, -4.09108
- Source
- Cadw listing
Description
Gwynfa is a house built in the late Georgian style, featuring two storeys and an attic. The exterior is pebble-dashed with rock-faced quoins and topped with a slate roof. The front has three bays, with a segmental-headed doorway that includes a replacement glazed door, side panels, and an overlight. This doorway is flanked by 12-pane horned sash windows. The middle storey has similar windows on the right and left, although the left-hand window is not aligned with the one below it, and there is a tall central small-pane stair window. At the top, a central gable features a 12-pane horned sash attic window.
On the left side of the house, there is an added one-bay projection, also pebble-dashed with rock-faced quoins, and its roof is concealed behind a moulded cornice. This projection has a 12-pane horned sash window on the lower storey and a fixed 12-pane window above it. The side wall of this projection includes a boarded door to the left.
The right gable end, which faces the Green, has barge boards that are pierced with trefoils and a pendant finial below a notional collar beam. A two-storey canted bay window features French doors, and there is a cast iron balcony supported by Corinthian posts and arched brackets with pierced spandrels, topped with a fretwork-style balustrade. The attic includes a pair of round-headed 8-pane sash windows set in a freestone surround with keystones and a corbelled sill, which is further enhanced by a cast iron grille.
Most of the original interior features were removed when the house was converted into flats, but it still retains its basic layout, which includes a central stair hall and principal rooms on the right side. The full-height open-well staircase has a turned newel and balusters.
Local climate
Gwynfa sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.
It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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