Tan-y-Bryn is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 24 May 2000. Residential.

Tan-y-Bryn

WRENN ID
final-pediment-fen
Grade
II
Local Planning Authority
Gwynedd
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
24 May 2000
Type
Residential
Address
Tan-y-Bryn, Llandygai, Bangor
OS grid reference
SH 598 706
Coordinates
53.21428, -4.10102
Source
Cadw listing

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

Description

Tan-y-Bryn is a terrace of three two-storey cottages located in Llandygai. The cottages were built as a group of three, with a central range flanked by cottages set into flush gables. The exterior walls are constructed of snecked slate-stone blocks, with the first floor slate-hung. A slate roof has deep verges. The central range features a slightly offset gabled stone and timber porch, containing a 20th century half-glazed door. A 3-light mullioned and transomed timber window sits immediately to the right of the porch. A 3-light flat-roofed dormer with a pediment has been altered with late 20th century plastic windows. Each gable features a 24-paned 4-light window on the first floor, alongside a handed 3-light timber mullioned and transomed window, and a smaller window on the ground floor. Gabled porches are present on each return; the left porch has a boarded door on the front wall, while the right porch is open to the front, with a boarded door on the side wall of the cottage—this arrangement is believed to be original. Prominent ridge stacks are located to the left and right, with stone bases and clustered brick diagonal shafts topped with moulded capping. The interior of the cottages was not inspected.

Local climate

Tan-y-Bryn 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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  • Detailed attributes — period, style, materials, features
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