No.1 The Twyn is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 6 October 1977. Cottage.
No.1 The Twyn
- WRENN ID
- little-landing-flax
- Grade
- II
- Local Planning Authority
- Cardiff
- Constituency
- Cardiff West MP: Mr Alex Barros-Curtis (Lab)
- Country
- Wales
- Date first listed
- 6 October 1977
- Type
- Cottage
- Address
- No.1 The Twyn, St Fagans, St. Fagans
- OS grid reference
- ST 119 770
- Coordinates
- 51.48567, -3.27004
- Source
- Cadw listing
Description
No. 1 The Twyn is a 2-storey cottage built with local rubblestone walls, featuring brick heads and dressings. Originally, it had a thatched roof with eyebrows, but it now has a plain tile roof and red brick stacks. This cottage is one of a pair, with No. 2 situated uphill from No. 1. The building has a central entry and a double depth plan, along with single storey rear extensions.
On the first floor, No. 1 features three small 2-light casement windows with small panes. The ground floor has a taller 2-light casement window with small panes on either side of the central doorway, which has a flat arch and a glazed porch.
The interior was not inspected during the recent survey, but a previous description from 1977 noted that the west ground floor room contained thick ceiling beams resting on corbels.
Local climate
No.1 The Twyn sits in a wetter-than-average part of the UK, with an average of 1,110 mm of rain a year. This makes it wetter than 88% 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 21 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 8 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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