National Westminster Bank is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 26 March 1976. House. 9 related planning applications.
National Westminster Bank
- WRENN ID
- muted-pier-myrtle
- Grade
- II
- Local Planning Authority
- Cardiff
- Constituency
- Cardiff South and Penarth MP: Stephen Doughty (Lab)
- Country
- Wales
- Date first listed
- 26 March 1976
- Type
- House
- Address
- National Westminster Bank, 117 St Mary Street, Castle, CF10 1DY
- OS grid reference
- ST 181 763
- Coordinates
- 51.47998, -3.17989
- Source
- Cadw listing
Description
The National Westminster Bank is a building designed in a painted 16th century style Italianate palazzo facade. It stands three storeys high and features five windows, with sash glazing on the upper floors. The ground storey is characterized by rusticated quoining and a bracketed cornice at the top. The second floor has segmental headed windows with keystones, while the first floor windows are adorned with bracketed pediments. Above the ground floor, there is a dentil cornice. The ground floor includes five arches, with a former entrance door located at the north end, and river god keystones above the rusticated arches. To the right (north), there is a modern entrance bay made of concrete and plate glass. The building has been modernized.
Local climate
National Westminster Bank 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 2 transactions since 2015
- Related listed building consents — 9 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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