St. Thomas' House, including attached railings is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 15 August 1974. House. 2 related planning applications.
St. Thomas' House, including attached railings
- WRENN ID
- secret-rafter-amber
- Grade
- II
- Local Planning Authority
- Monmouthshire
- Constituency
- Monmouthshire MP: Catherine Fookes (Lab)
- Country
- Wales
- Date first listed
- 15 August 1974
- Type
- House
- Address
- St. Thomas' House, including attached railings, 12 St. Thomas' Square, Overmonnow, Monmouth
- OS grid reference
- SO 504 124
- Coordinates
- 51.80832, -2.72021
- Source
- Cadw listing
Description
St. Thomas’ House is a probably mid-Georgian building, likely dating from the mid-18th century, constructed with a smooth stucco facade over local rubble, and covered by a Welsh slate roof. It is a three-storey building with a double-depth central entrance plan, originally featuring three windows. The front door is a six-panel door with a transom light, later fitted with a flat hood supported by brackets. Ground floor windows are nine-over-nine sash windows, with small half-panes on either side. First-floor level features canted oriel windows on brackets, each with a central nine-over-nine sash window and two-over-two sashes on the sides, all with slate roofs. The upper floor windows are four-over-eight pane sashes flanking a three-over-six sash. The roof has a low pitch, with a brick stack on each gable. Attached to the front are wrought iron railings and a gate enclosing the front garden. The rear elevation has been altered.
The interior is plain and was altered in the later 19th century, with joinery mostly dating from that period.
Local climate
St. Thomas' House, including attached railings receives an average of 820 mm of rain a year. This makes it wetter than 52% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 57% of listed buildings.
It experiences an average of 42 freeze-thaw cycles a year, more than 80% of listed buildings. Of these, 19 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 — 5 transactions since 2006
- 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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