Castellated Garden Walls and Towers at Castell Deudraeth is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 23 August 2002. Garden walls and towers.
Castellated Garden Walls and Towers at Castell Deudraeth
- WRENN ID
- late-lead-tarn
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 23 August 2002
- Type
- Garden walls and towers
- Address
- Castellated Garden Walls and Towers at Castell Deudraeth, Portmeirion, Penrhyndeudraeth
- OS grid reference
- SH 591 376
- Coordinates
- 52.9178, -4.09607
- Source
- Cadw listing
Description
The castellated garden walls and towers at Castell Deudraeth are constructed from rubble and date from the 19th century. The wall begins at the southwest corner of Castell Deudraeth, standing approximately 4 meters high. It extends southwest for about 25 meters, enclosing the lawns behind the house on the left side and serving as a high revettment with a terrace above. Along this section, there are three deep niches, each featuring a depressed brick arch, spaced roughly 5 meters apart. At the end of this stretch is a square tower that rises to about 8 meters, complete with a corner turret on the east side and a plain opening with a slate lintel on the northeast side. The southeast side, facing the lawn, has Gothick pointed-arched windows on both the ground and upper floors.
Beyond the tower, the wall continues for a similar distance but has fewer crenellations and is slightly shorter. In front of this section is a low terrace with a 1-meter revettment, accessible via steps at the tower. The wall then makes a right-angle turn and rises beyond an opening onto the low terrace, continuing northwest for approximately 15 meters. This stretch ends with a plain, wide opening, leading to a part-castellated square tower about 4 meters high. This tower is castellated only on the northeast and southeast sides, which face the house, and it conceals a simple single-storey lean-to store with a modern boarded southwest side.
The wall makes another right-angle turn at this point and runs for about 22 meters in a northeast direction back towards the house, parallel to the lower wall, before terminating in another tower. At the end of the lower terrace wall, a further low wall adjoins and arcs widely to follow the lane, stepping up and down at heights of 1 meter and 2 meters variably. This section eventually ends in a flight of steps with iron railings towards the southeast corner of the house. Approximately two-thirds along this last stretch of wall is a tall, circular turret with an open rear.
Local climate
Castellated Garden Walls and Towers at Castell Deudraeth sits in one of the wettest parts of the UK, with an average of 1,490 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 97% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 60% of listed buildings. Of these, 15 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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