The Thatch is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 24 February 2000. A 19th century House. 2 related planning applications.
The Thatch
- WRENN ID
- seventh-shingle-fog
- Grade
- II
- Local Planning Authority
- Cardiff
- Constituency
- Cardiff West MP: Mr Alex Barros-Curtis (Lab)
- Country
- Wales
- Date first listed
- 24 February 2000
- Type
- House
- Period
- 19th century
- Address
- The Thatch, 128 Heol Isaf, Radyr, Radyr and Morganstown, CF15 8EA
- OS grid reference
- ST 132 794
- Coordinates
- 51.50769, -3.2512
- Source
- Cadw listing
Description
The Thatch is a long, relatively shallow building dating from the 18th century. Its main frontage faces south towards the garden and features short cross wings and single-storey extensions at the rear. The building is rendered with ashlar dressings and has a thatched roof with eyebrow dormers on the main frontage, hipped on the sides and rear, and with rendered ridges and external stacks at each end. The windows are leaded lights set in stone surrounds that have sunk chamfers and narrow mullions; the first-floor windows are positioned close under the eaves.
The main south frontage consists of three bays, with the centre bay projecting forward. The first floor is supported by a narrower ground floor bay and brackets on either side, creating a slightly jettied effect. There are paired three-light windows above and a four-light window below. To the right, there is a two-light first-floor window and a three-light ground floor window. To the left, paired two-light windows are situated above a ground floor garden recess that features a wide full-length multipane garden window. The entrance area has a thatched porch supported by stone piers at the angle between the gable end of the main frontage and the rear wing; behind the porch is a panelled door with rustic hinges. Under the eyebrow eaves to the right, there is a three-light window and paired single lights on the ground floor; to the left is a wide stepped external stack of the main range flanked by single lights. At the opposite end, a kitchen bay projects forward with a larger window and an adjacent external stack. The rear of the building has similar window arrangements between the asymmetrical bays.
Inside, the layout is designed along a corridor that runs the length of the building. Off this corridor, reception rooms with garden views are located to the left, while service rooms are to the right. Each ground floor room features a fireplace of a different style: one in Tudor style with a timber lintel, another with a semicircular brick arch, and a third with a castellated brick design. The bedrooms also have fireplaces, one of which features moulded brick rose motifs and a deep brick kerb. The woodwork throughout the interior is dark stained.
Local climate
The Thatch 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
- Sale history — 1 transaction since 2017
- Related listed building consents — 2 applications
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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