13 New Castle Street is a Grade II listed building in the Merthyr Tydfil local planning authority area, Wales. First listed on 22 August 1975. House.

13 New Castle Street

WRENN ID
dusted-arch-raven
Grade
II
Local Planning Authority
Merthyr Tydfil
Constituency
Merthyr Tydfil and Aberdare MP: Gerald Jones (Lab)
Country
Wales
Date first listed
22 August 1975
Type
House
Address
13 New Castle Street, Town
OS grid reference
SO 050 063
Coordinates
51.74798, -3.37676
Source
Cadw listing

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

Description

13 New Castle Street is a mid-19th century two-storey corner house that features higher eaves than the adjoining terraced houses on the left. The front has three bays and is finished in pebbledash, with pilasters and a bargeboarded cross-gable at the center. There is a band course and a plinth. The first-floor windows are sash windows without glazing bars, while the left ground-floor window is a three-light sash with glazing bars and horns. The doorway is recessed and has a rectangular traceried fanlight above a panelled door.

The gabled side elevation to the right includes a flat-arched doorway flanked by pilasters and topped with a cornice on consoles, leading to a four-panel door with a plain rectangular fanlight. There are sash windows to the right and an arched staircase window. The lower rear range has sash windows with glazing bars, including one triplet on the ground floor.

Local climate

13 New Castle Street sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 44 freeze-thaw cycles a year, more than 85% 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 2003
  • 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
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