Ty-mawr is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 27 June 1952. Thatched house. 2 related planning applications.

Ty-mawr

WRENN ID
sacred-landing-tallow
Grade
II
Local Planning Authority
Monmouthshire
Constituency
Monmouthshire MP: Catherine Fookes (Lab)
Country
Wales
Date first listed
27 June 1952
Type
Thatched house
Address
Ty-mawr, 7 Monk Street, Monmouth, NP25 3NZ
OS grid reference
SO 509 130
Coordinates
51.81435, -2.71279
Source
Cadw listing

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

Description

Ty-mawr is a large house, likely dating to the 18th century, though with later alterations. The building is composed of two distinct sections. The left-hand section is roughcast over stone with a roof hidden from the street. It is two storeys high with two windows, and a cill band runs along the front. The windows to the main rooms on the right project forward in a full-height bay. A recessed doorway is located to the right, featuring plain pilasters, a six-panel door, and an unusual, later fanlight positioned above the architrave. The windows are 6 over 6 pane sashes. The elevation is finished with a plain frieze, cornice, and parapet, and includes a tall red brick stack on the right wall. Wrought iron railings with arrow heads, and iron gates are present.

The right-hand section is rendered and painted, featuring quoined surrounds to the windows and a Welsh slate roof. This section is three storeys high with three windows, and lacks a front doorway. The elevation exhibits five different window sizes. The ground floor has wider 2 over 2 pane sashes flanking a narrow 1 over 1 window. The first floor features a wider 1 over 1 window flanked by smaller and narrower 1 over 1s. The second floor has three equal 1 over 1 windows. The elevation is topped with projecting eaves and a plain pitched roof, concluding with a tall red brick stack on the right gable. The right return displays a rear wing of only two storeys. The rear elevation was not visible during inspection. The interior was not inspected during a recent survey.

Local climate

Ty-mawr 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 — 1 transaction since 2008
  • 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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  6. 12 Monk Street Grade II 33 m
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