12 St. James' Square is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 15 August 1974. House. 7 related planning applications.
12 St. James' Square
- WRENN ID
- dusted-tin-khaki
- Grade
- II
- Local Planning Authority
- Monmouthshire
- Constituency
- Monmouthshire MP: Catherine Fookes (Lab)
- Country
- Wales
- Date first listed
- 15 August 1974
- Type
- House
- Address
- 12 St. James' Square, Monmouth, NP25 3DN
- OS grid reference
- SO 510 129
- Coordinates
- 51.81326, -2.71117
- Source
- Cadw listing
Description
12 St. James' Square is a two-storey building dating from the later 19th century. It has a T-shaped plan, consisting of a main street range and a rear wing. The front facade is rendered and painted, and the roof is covered with Welsh slate. The building has two windows at each level. A slightly off-centre gabled porch has been added. Later 19th-century windows with two panes over two are present, and a three-window bay is canted on the left side at ground floor level. The rear wing is also gabled and rendered and painted.
The interior is complex due to its later use as a school boarding house and master's residence, which has involved the removal of walls, altered floor levels, and divided rooms. Some slight chamfered beams are visible. The roof structure is the most significant original feature, showing evidence of fire damage and multiple periods of construction and alteration. The roof is a principal rafter construction, and the interior has timber-framed partitions with lath-and-plaster walls.
Local climate
12 St. James' Square 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 — 4 transactions since 2017
- Related listed building consents — 7 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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