Ty Du is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 12 March 2003. Cottage, agricultural range.
Ty Du
- WRENN ID
- hollow-flint-vetch
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 12 March 2003
- Type
- Cottage, agricultural range
- Address
- Ty Du, Llanfihangel Din Silwy, Llanddona
- OS grid reference
- SH 581 807
- Coordinates
- 53.30448, -4.13084
- Source
- Cadw listing
Description
Ty Du is a linear range that includes a lofted two-window cottage, a two-storey two-window wing on the right, and a single-storey cartshed and three-unit cowhouse on the left. The building is constructed of rubble masonry and is limewashed. It features a roof made of small old slates that are heavily grouted, with a large stack at the right gable and stone copings; the agricultural range has a roof made of profiled material.
The oldest part of the range is the lofted cottage, which has a central doorway flanked by windows, and small paned, horizontally sliding sash windows in hipped roofed dormers that break the eaves line. The two-window wing has a doorway to the left, beneath a four-pane first-floor light, while the ground floor window to the right is now blocked with brick. To the left of the cottage is a wide cartbay door, accompanied by a massive pyramidal buttress on the left; next to the buttress is the three-unit cowhouse.
The interior of the range could not be easily viewed for safety reasons, but it retains a massive bressumer above an inglenook fireplace in the wing on the right.
Local climate
Ty Du 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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