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. 1 related planning application.

House including attached railings

WRENN ID
north-stronghold-sage
Grade
II
Local Planning Authority
Monmouthshire
Constituency
Monmouthshire MP: Catherine Fookes (Lab)
Country
Wales
Date first listed
15 August 1974
Type
House
Address
House including attached railings, 21 St. Mary's Street, Monmouth, NP25 3DB
OS grid reference
SO 509 128
Coordinates
51.81223, -2.7134
Source
Cadw listing

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

Description

This is a late 18th-century house, built as a pair, featuring pebble-dash render over likely brickwork and a Welsh slate roof. It is a balanced double-depth design with entrances on the outside, arranged over three storeys and featuring two windows on each floor. Horizontal bands delineate the first and second floors. The house has six-panel doors, each protected by a flat hood, and intact wrought iron area railings with spear heads. The windows are sash windows with largely intact glazing bars, with a tripartite window on the right-hand ground floor, containing 6 over 6 panes flanked by 2 over 2 panes, and keystone heads. The steeply pitched roof is of an "M" shape, incorporating a central shared chimney stack. The return gable walls are blank and rendered. The rear elevation was not inspected. The interior remains unexamined.

Local climate

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 — 3 transactions since 2019
  • Related listed building consents — 1 application
  • 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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Nearby listed buildings

  1. House including attached railings Grade II 6 m
  2. 19 St. Mary's Street Grade II 11 m
  3. 24 St. Mary's Street Grade II 18 m
  4. 25 St. Mary's Street Grade II 24 m
  5. 25A St. Mary's Street Grade II 28 m
  6. St. Mary's Presbytery Grade II 30 m
  7. 28 St. Mary's Street Grade II 34 m
  8. Catholic Church of St. Mary Grade II 35 m
  9. 27 St. Mary's Street Grade II 35 m
  10. 29 St. Mary's Street Grade II 39 m