66 Mostyn Street is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 16 March 1976. Shop with restaurant.

66 Mostyn Street

WRENN ID
long-corbel-owl
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
16 March 1976
Type
Shop with restaurant
Address
66 Mostyn Street, Llandudno
OS grid reference
SH 781 823
Coordinates
53.32437, -3.83053
Source
Cadw listing

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

Description

66 Mostyn Street is a two-storey shop with a restaurant above, plus an attic. The building features a slate roof and a stucco front, with two windows across the front. It has two gabled dormers in the attic, which have modern glazing. A cornice with toothing runs along the top, and there is a continuous stringcourse on the second floor that rises above the windows to create square-headed dripstones, forming a triangular shape between the windows. On the second floor, there are two square-headed sash windows with quoined architraves. The first floor has a segmental-headed sash window with a moulded head and flanking columns on the left side, while the right side features a canted three-light bay window with segmental-headed lights, flanking columns, and a toothed cornice. On the ground floor, there is a segmentally-headed doorway to the restaurant on the left and a modern shopfront on the right.

Local climate

66 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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