20 Mount Stuart Square is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 19 May 1975. House. 2 related planning applications.
20 Mount Stuart Square
- WRENN ID
- outer-dormer-jay
- Grade
- II
- Local Planning Authority
- Cardiff
- Constituency
- Cardiff South and Penarth MP: Stephen Doughty (Lab)
- Country
- Wales
- Date first listed
- 19 May 1975
- Type
- House
- Address
- 20 Mount Stuart Square, Butetown, CF10 5DP
- OS grid reference
- ST 189 746
- Coordinates
- 51.4649, -3.16851
- Source
- Cadw listing
Description
20 Mount Stuart Square is a former house that faces north and consists of three storeys with one window bay. The building features a slate roof and a brick chimney, with a stucco exterior. The ground floor is rusticated, while the upper floors have some scribing that imitates ashlar. There is a shallow plinth, a cornice, and a parapet, with additional cornices at both the first and second floor levels. The second floor has a broad tripartite window with horned sashes. The first floor features a Venetian-type window with a tripartite opening, which is articulated by Doric pilasters and has a shell motif in a small tympanum above. The ground floor remains largely unaltered and includes a segmental-headed doorway with stucco voussoirs, along with a broad window to its left.
Local climate
20 Mount Stuart Square sits in a wetter-than-average part of the UK, with an average of 1,080 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 22 freeze-thaw cycles a year, fewer than 77% 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 — 2 transactions since 2004
- 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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