Tan-y-lon is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 9 March 2000. Cottages.

Tan-y-lon

WRENN ID
first-steel-hazel
Grade
II
Local Planning Authority
Gwynedd
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
9 March 2000
Type
Cottages
Address
Tan-y-lon, Bangor, Llanllechid
OS grid reference
SH 617 710
Coordinates
53.21851, -4.07136
Source
Cadw listing

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

Description

Tan-y-lon is a symmetrical single-storey pair of two-room cottages with lofts, built in the vernacular revival style typical of the Penrhyn Estate during this period. The cottages are constructed of coursed rubblestone, featuring voussoirs above slightly cambered window and door heads on the front elevation, while the right gable end is rendered. They have a slate roof. Each cottage has a central entrance, with the left cottage (No.2) having a 20th-century half-glazed door, and the right cottage (No.1) featuring a 20th-century six-panel door. The windows are handed, with two-light and three-light 12- and 18-paned designs respectively, and slate cills. Both cottages have integral end stacks and a shared ridge stack at the center, with the original stacks having stepped capping, although the right stack has been rebuilt. There are loft windows in the gable ends, with No.1 having two rooflights on the rear and a single-storey lean-to, while No.2 has a flat-roofed extension at the back. The interior was not inspected at the time of the survey.

Local climate

Tan-y-lon 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 90% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 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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