8 Segontium Terrace, including forecourt railings is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 31 March 1983. House. 1 related planning application.

8 Segontium Terrace, including forecourt railings

WRENN ID
muffled-joist-rook
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
31 March 1983
Type
House
Address
8 Segontium Terrace, including forecourt railings, Caernarfon, LL55 2PN
OS grid reference
SH 479 626
Coordinates
53.13883, -4.27384
Source
Cadw listing

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

Description

8 Segontium Terrace is a late Georgian house built around the turn of the 18th and 19th centuries. It is three storeys high with two bays, and the front is rendered with a rusticated quoin strip on the right side. The roof is slate, with a roughcast chimney stack on the right. The doorway on the left bay has a replaced panelled door and overlight, set within a round-headed opening. The windows are replacements, but set within earlier openings; those in the upper storey are shorter. They have late 19th-century keyed architraves. A similar window and a replaced door are found in the basement. The front railings have spear finials. A rubble-stone rear wall is also part of the property.

Local climate

8 Segontium Terrace, including forecourt railings 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 — 4 transactions since 2000
  • Related listed building consents — 1 application
  • 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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