Coptic House is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 19 May 1975. Commercial building.

Coptic House

WRENN ID
hallowed-slate-russet
Grade
II
Local Planning Authority
Cardiff
Constituency
Cardiff South and Penarth MP: Stephen Doughty (Lab)
Country
Wales
Date first listed
19 May 1975
Type
Commercial building
Address
Coptic House, 4 Mount Stuart Square, Butetown, CF10 5EE
OS grid reference
ST 189 746
Coordinates
51.46532, -3.16747
Source
Cadw listing

Also on this page: sale history · EPC · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Coptic House is a three-storey building made of Portland stone, featuring five bays. The ends are accentuated with giant banded pilaster strips. At the top, there is a parapet displaying the date '1910' within a laurel garland on a stepped central pediment, along with a modillion cornice. The first and second floors have square-headed windows, with the second-floor windows featuring moulded surrounds and broad keystones above, supported by lion-headed brackets. The first-floor windows are adorned with cornices that have recessed central sections and banded surrounds that extend between the windows. The ground floor showcases banded rustication and a cornice held up by large volute brackets. The central rectangular entrance doorway is highlighted by a very large volute keystone and is flanked by modern shopfronts, each situated between engaged banded quarter columns topped with small Roman Doric capitals.

Local climate

Coptic House 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 — 1 transaction since 2025
  • 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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  8. The Point (Formerly St Stephen's Church) Grade II 34 m
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