Twll-y-clawdd is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 2 May 2001. Cottage.
Twll-y-clawdd
- WRENN ID
- odd-facade-bramble
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 2 May 2001
- Type
- Cottage
- Address
- Twll-y-clawdd, Llanfflewyn, Amlwch, Mechell
- OS grid reference
- SH 355 886
- Coordinates
- 53.3689, -4.47309
- Source
- Cadw listing
Description
Twll-y-clawdd is a linear range that includes a one-and-a-half storey cottage and an attached outhouse, which now forms part of the accommodation. The exterior is finished in pebbledash over stone and features a heavily grouted slate roof with tiled copings. The gable stacks are rendered, with the left (south) stack being a large square design that includes dripstones and capping.
The cottage has a two-window range, with widely spaced windows at either end and a doorway that is strongly offset to the left (south) side. The modern door is set within a rendered gabled porch. The ground floor windows are fixed 6-pane lights, while the first floor has small 2-pane top-hung casements positioned directly under the eaves, all with slate sills. The attached single-storey outhouse features a fixed 6-pane light on the right (north) side and a modern door on the left (south) side.
In front of the house, there is an enclosed yard bordered by a low rendered rubble wall and ornate wrought iron gates. Inside, the cottage has been modernised but still retains features such as the cambered bressumer over the inglenook, some exposed loft beams, and the old steps leading to the loft.
Local climate
Twll-y-clawdd sits in a wetter-than-average part of the UK, with an average of 1,040 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.
It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% of listed buildings. Of these, 2 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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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