137 Mostyn Street is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 16 March 1976. Commercial building. 5 related planning applications.

137 Mostyn Street

WRENN ID
shadowed-balcony-amber
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
16 March 1976
Type
Commercial building
Address
137 Mostyn Street, Llandudno, LL30 2PE
OS grid reference
SH 780 826
Coordinates
53.32647, -3.83233
Source
Cadw listing

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

Description

Nos. 127-137 (odd numbers) Mostyn Street, Llandudno are a row of three-storey buildings with attics. They have slate gabled roofs. The exterior is clad in cement render or pebbledash. The top-floor windows have simple surrounds, while those on the first floor are accentuated by Ionic pilasters and entablatures. Ground-floor shops are present, some with verandas.

The buildings are stepped to follow the uphill gradient. Two box dormers are visible, featuring modern glazing. The second floor has three-light casement windows. The first floor has two splayed bay windows. The ground floor has plate-glass shop fronts, and at the right-hand end is a rusticated round-headed doorway, mirroring the design of No. 129. A three-bay cast-iron veranda, dating to the late 19th or early 20th century, is present. It features columns, two of which are fluted, along with decorative spandrels similar to the veranda of No. 135.

Local climate

137 Mostyn Street sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 76% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, fewer than 51% of listed buildings. Of these, 18 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 2017
  • Related listed building consents — 5 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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  1. 139 Mostyn Street Grade II 9 m
  2. 135 Mostyn Street Grade II 10 m
  3. 133 Mostyn Street Grade II 18 m
  4. 131 Mostyn Street Grade II 27 m
  5. Free Standing Shop Sign Standard Grade II 33 m
  6. 129 Mostyn Street Grade II 37 m
  7. Fountains Bar & Cafe Grade II 38 m
  8. 147 Mostyn Street, including verandah Grade II 40 m
  9. 1 Llewelyn Avenue Grade II 42 m
  10. Baytree Hotel (part) Grade II 46 m