18 is a Grade II listed building in the Denbighshire local planning authority area, Wales. First listed on 22 December 1989. House. 1 related planning application.

18

WRENN ID
standing-keep-smoke
Grade
II
Local Planning Authority
Denbighshire
Constituency
Clwyd East MP: Becky Gittins (Lab)
Country
Wales
Date first listed
22 December 1989
Type
House
Address
18, 18 Church Street, Llangollen, LL20 8HY
OS grid reference
SJ 217 419
Coordinates
52.96918, -3.16689
Source
Cadw listing

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

Description

This is an early 17th century timber framed house, originally with a two-window square front. It is a single storey building with an attic, with a slate roof, overhanging eaves, and gabled dormers. A modern top-hung casement window and a half-glazed door with a pitched hood are on the left side; evidence suggests the original entrance may have been nearer the right end, where there is a former shouldered opening. The building stands on a high rubble base. A massive stone chimney breast is on the left, with a square panelled gable that has been partly cut down and has a red brick chimney stack added. A kitchen lean-to extends from the rear.

Inside, the square panelled timber frame is visible at the front and rear, and the remains of a studded partition exist between the main rooms. The original roof structure is preserved, including tie beams and purlins.

Local climate

18 receives an average of 920 mm of rain a year. This makes it wetter than 70% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 73% of listed buildings.

It experiences an average of 48 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 28 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 2022
  • 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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