21 Lower Castle Street is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 10 November 2005. House.
21 Lower Castle Street
- WRENN ID
- narrow-spindle-amber
- Grade
- II
- Local Planning Authority
- Monmouthshire
- Constituency
- Monmouthshire MP: Catherine Fookes (Lab)
- Country
- Wales
- Date first listed
- 10 November 2005
- Type
- House
- Address
- 21 Lower Castle Street, Abergavenny, NP7 5EE
- OS grid reference
- SO 299 140
- Coordinates
- 51.82068, -3.01798
- Source
- Cadw listing
Description
21 Lower Castle Street is part of a group of buildings at Nos. 17-21 Castle Street, dating from the 19th century. The exterior features roughcast render that is painted, with natural slate roofs, ridge tiles, and red brick chimney stacks. The building has a double depth plan with entrances on the right side, except for No. 19. It stands three storeys tall with a basement and has a narrow single bay width.
On the ground floor, there is an 8 over 8 pane sash window with a slightly cambered head, alongside a six-panel door; No. 21 includes an overlight above the door. The basement contains a small window that is mostly concealed. The first floor window matches the ground floor, while the second floor features a 4 over 8 pane sash window. The roof is plain with a gable ridge stack that is shared with Nos. 19 and 21.
The rear elevation has not been inspected, and the interior was not examined during the resurvey.
Local climate
21 Lower Castle Street receives an average of 960 mm of rain a year. This makes it wetter than 74% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 71% of listed buildings.
It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 22 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 — 3 transactions since 2002
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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