Ty'n-y-Llwyn is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 26 May 1995. House.

Ty'n-y-Llwyn

WRENN ID
lone-bracket-mint
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
26 May 1995
Type
House
Address
Ty'n-y-Llwyn, Llanfachreth, Brithdir and Llanfachreth, Gwynedd
OS grid reference
SH 760 222
Coordinates
52.78334, -3.83911
Source
Cadw listing

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

Description

Ty'n-y-Llwyn is a single-storey building with a D-shaped design, constructed from rubble and topped with a semi-conical old slate roof. It features a two-section chimney, with the upper part being a brick addition, and has a plain cornice. On the flat rear side, there is a central blocked entrance that includes a datestone with the initials RW V AM, representing Robert Williames and Anna Maria Vaughan. To the right and left of the entrance are plain-glazed windows, along with a recessed boarded door that has a rectangular light above it. The front of the building has two small flush four-pane casement windows, which flank a blind cross-loop. At the time of inspection in February 1995, the building was undergoing roof repairs.

Local climate

Ty'n-y-Llwyn sits in one of the wettest parts of the UK, with an average of 1,310 mm of rain a year. This makes it wetter than 95% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.

It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 26 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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