25 St. Mary's Street 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.

25 St. Mary's Street

WRENN ID
unlit-keep-pigeon
Grade
II
Local Planning Authority
Monmouthshire
Constituency
Monmouthshire MP: Catherine Fookes (Lab)
Country
Wales
Date first listed
15 August 1974
Type
House
Address
25 St. Mary's Street, Monmouth, NP25 3DB
OS grid reference
SO 509 128
Coordinates
51.81215, -2.71308
Source
Cadw listing

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

Description

25 St. Mary’s Street is a double-depth building of two storeys and garrets, originally three bays wide but now divided into two dwellings. The building is roughcast rendered and has a tile roof. The central doorcase features a reeded architrave and a partially glazed six-panel door. A projecting canted bay window to the right has five panes across three lights. A full-height projecting bay to the left has been altered; a modern door is set into what was likely originally a tripartite sash window. The roof is steeply pitched with gable stacks. A small rear wing is also present. The interior was not inspected during a recent survey.

Local climate

25 St. Mary's Street 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 1995
  • 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
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