6 Holywell Terrace is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 13 April 1977. House.
6 Holywell Terrace
- WRENN ID
- kindled-lead-gorse
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 13 April 1977
- Type
- House
- Address
- 6 Holywell Terrace, Caernarfon
- OS grid reference
- SH 482 626
- Coordinates
- 53.13942, -4.26945
- Source
- Cadw listing
Description
6 Holywell Terrace is part of a terrace of six single-fronted, two-storey houses built from square coursed rubble with graded slate roofs. The roof of No 12 has been replaced with thin square slates, and the stacks are roughcast, except for a brick stack on the left side of No 12. Each property features a round-headed doorway on the right, with the voussoirs exposed on No 12 but concealed by render on the other houses. Above each doorway, there is a painted tympanum above a replaced door. The windows have stone lintels on the lower storey and are positioned beneath the eaves on the upper storey. The original windows have been replaced with mainly small-pane top-hung casements. The right gable end of No 2 is pebble-dashed and has an external stack, while the left gable end of No 12 is made of rubble stone. There are additions at the rear. This terrace belongs to a group that includes 2-12 Holywell Terrace.
Local climate
6 Holywell Terrace sits in one of the wettest parts of the UK, with an average of 1,370 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 98% of listed buildings.
It experiences an average of 20 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 9 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 1 transaction since 2025
- 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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