13A New Castle Street is a Grade II listed building in the Merthyr Tydfil local planning authority area, Wales. First listed on 22 August 1975. A C19 House.

13A New Castle Street

WRENN ID
ragged-jade-sedge
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
13A New Castle Street, Town
OS grid reference
SO 050 063
Coordinates
51.74802, -3.37668
Source
Cadw listing

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

Description

13A New Castle Street is a mid-19th century two-storey corner house that features higher eaves than the adjoining terraced houses to the left. The front is finished in pebbledash and has three bays, 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 ground-floor left has a three-light sash window with glazing bars and horns. The doorway is recessed and includes a rectangular traceried fanlight above a panelled door.

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

Local climate

13A 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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