Ty'n-y-bryn is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 10 April 2000. House.

Ty'n-y-bryn

WRENN ID
third-iron-sage
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
10 April 2000
Type
House
Address
Ty'n-y-bryn, Llanfihangel-Y-Pennant, Tywyn, Gwynedd
OS grid reference
SH 658 080
Coordinates
52.65313, -3.98408
Source
Cadw listing

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

Description

Ty'n-y-bryn is a two-storey building constructed of squared rubble and features a replaced slate roof with deep verges. It has four window bays, with a margin glazed door and an overlight located in the second bay from the east, set within a stop-chamfered frame. The windows include twelve-paned unhorned sash windows on the lower floor and nine-pane single sashes on the upper floor, all featuring yellow-grey slate lintels, likely sourced from Bryneglwys Quarry. The fourth bay, which is wider and has a gable stack, appears to replace a former in-line farm building and includes an attached lean-to at the pebbledashed west end. A commemorative plaque was affixed to the front wall in October 1988. The building was not inspected during the resurvey.

Local climate

Ty'n-y-bryn sits in one of the wettest parts of the UK, with an average of 1,390 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 28 freeze-thaw cycles a year, fewer than 69% of listed buildings. Of these, 13 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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  • 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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