Pig-swill House at Ty Iocws is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 8 February 1999. House.

Pig-swill House at Ty Iocws

WRENN ID
roaming-cobalt-merlin
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
8 February 1999
Type
House
Address
Pig-swill House at Ty Iocws, Abererch, Pwllheli, Llannor
OS grid reference
SH 379 367
Coordinates
52.90371, -4.41109
Source
Cadw listing

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

Description

Pig-swill House at Ty Iocws is a single-storey building constructed from rubble stonework, topped with an irregularly sized slate roof. It features a boarded door and a timber window with panes. At the northern end, there is a tall cylindrical chimney stack.

Inside, the layout consists of two bays, with a central tie beam and an applied collar truss. The stack and food preparation area are located at the northern end of the building.

Local climate

Pig-swill House at Ty Iocws sits in one of the wettest parts of the UK, with an average of 1,670 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.

It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% of listed buildings. Of these, 1 follows 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
  • Flood risk assessment
  • 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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