120 Mostyn Street is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 6 June 2001. House. 2 related planning applications.

120 Mostyn Street

WRENN ID
sharp-passage-sorrel
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
6 June 2001
Type
House
Address
120 Mostyn Street, Llandudno, LL30 2SW
OS grid reference
SH 780 826
Coordinates
53.3269, -3.83319
Source
Cadw listing

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

Description

120 Mostyn Street is a three-storey house with three windows, built in stucco and topped with a hipped slate roof that has a modern dormer on the left side. The second floor features a horned sash window set within shallow lugged architraves. On the first floor, to the left, there is a four-pane sash window in a similar architrave, while to the right, there is a two-storey splayed bay window with horned sash glazing on both the first and ground floors. The ground floor has a glazed door in an altered doorway, accompanied by a rectangular overlight.

Local climate

120 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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  • No EPC on record for this property
  • No sale records on file
  • 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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