Cowhouse and Cottage Complex at Gardd-Llygaid-y-Dydd is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 25 November 1998. Agricultural complex.

Cowhouse and Cottage Complex at Gardd-Llygaid-y-Dydd

WRENN ID
hidden-keystone-oak
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
25 November 1998
Type
Agricultural complex
Address
Cowhouse and Cottage Complex at Gardd-Llygaid-y-Dydd, Porthmadog, Beddgelert, Gwynedd
OS grid reference
SH 605 457
Coordinates
52.99058, -4.07931
Source
Cadw listing

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

Description

The Cowhouse and Cottage Complex at Gardd-Llygaid-y-Dydd is a small group of adjoining agricultural and domestic buildings arranged around a central byre, forming a rough F-plan. The structures are built from rubble, with the byre section featuring boulder foundations and kneelered slate roofs, as well as a rubble gable parapet on the northwest gable. The main entrance is located on the long southeast side, facing an older house, and consists of a modern boarded door with a slatestone lintel. To the left of the entrance, there is early scratch graffiti, including the date 1723 and the name Owen Hughes. The left gable of the block has a 19th-century nine-pane sash window on the ground floor and a similar window in the upper loft. The opposite gable end features two small outer lights with plain glazing and deep inward splays.

The domestic section, which is a 19th-century addition to the byre, faces northwest and forms an L-shaped block. This section includes squat end chimneys and modern 8-pane casement windows, as well as a gabled dormer in the upper floor of the 19th-century part, along with a part-glazed door. The brewhouse section also has a squat gable end chimney.

Inside the primary section, there is an old ladder providing access to a first-floor sleeping loft. The roof consists of two bays with a collar truss (the collar has been removed) and features some vertical boarding beneath the principals, all limed. In the far bay, there is a plain built-in bedstead, likely from the first half of the 19th century, with cord stringing.

Local climate

Cowhouse and Cottage Complex at Gardd-Llygaid-y-Dydd sits in one of the wettest parts of the UK, with an average of 1,500 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.

It experiences an average of 32 freeze-thaw cycles a year, fewer than 58% of listed buildings. Of these, 16 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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