9 Y Graig (Sunnyside) is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 1 April 1974. Townhouse.

9 Y Graig (Sunnyside)

WRENN ID
quiet-steeple-falcon
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
1 April 1974
Type
Townhouse
Address
9 Y Graig (Sunnyside), Tremadog, Porthmadog
OS grid reference
SH 559 402
Coordinates
52.94011, -4.14482
Source
Cadw listing

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

Description

9-10, 19-21 Sunnyside in Tremadog is a terrace of five two-storey houses built from local stone. The stonework is roughly coursed and squared for No 9, while the other houses feature random rubble with larger quoins. Each house has stone lintels, a slate roof, and six stone chimney stacks. No 21 is a later addition to the terrace and is single-fronted, with its windows and door on the right, both replaced in their original openings. The left gable end of No 21 is painted black, and there is a lean-to at the back. A vertical joint marks the separation between Nos 20 and 21. Nos 20, 19, and 10 are also single-fronted with entrances on the right. No 20 is the best preserved, featuring a boarded door with an overlight and four-pane hornless sash windows. Nos 19 and 9 have had their doors and windows replaced in the late 20th century, but still in their original openings. No 9 is double-fronted, with its door and windows also replaced in original openings, and it includes a flat-roof rear wing. This group of houses is significant within the local context.

Local climate

9 Y Graig (Sunnyside) sits in one of the wettest parts of the UK, with an average of 1,490 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 97% of listed buildings.

It experiences an average of 32 freeze-thaw cycles a year, fewer than 60% of listed buildings. Of these, 15 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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  • No EPC on record for this property
  • Sale history — 1 transaction since 2007
  • No related consent applications matched
  • 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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  2. 19 Y Graig (Sunnyside) Grade II 10 m
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  4. 8 Y Graig (Sunnyside) Grade II 15 m
  5. 21 Y Graig (Sunnyside) Grade II 18 m
  6. 7 Y Graig (Sunnyside) Grade II 21 m
  7. 6 Y Graig (Sunnyside) Grade II 29 m
  8. 5 Y Graig (Sunnyside) Grade II 58 m
  9. 4 Y Graig (Sunnyside) Grade II 66 m
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