Crown House is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 21 July 1999. Terrace of cottages. 3 related planning applications.

Crown House

WRENN ID
lapsed-chimney-barley
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
21 July 1999
Type
Terrace of cottages
Address
Crown House, Llansannan, Denbigh, LL16 5HN
OS grid reference
SH 933 658
Coordinates
53.17881, -3.59696
Source
Cadw listing

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

Description

Crown House is a late 18th or early 19th century terrace of cottages, likely built for quarry workers, situated in the village of Llansannan. The terrace displays varying masonry construction, and most of the original windows remain in both the front and rear elevations. Each house in the terrace, apart from the Surgery, has a front garden enclosed by low rubble walls with bevelled capping and railings. The railings consist of paired and joined rails with rounded heads, alternating with vertical rails topped with fleur de lys finials. The gates feature tall and short vertical rails with fleur de lys finials, plain foot and lock stiles, and shaped wrought iron swirls above the top rail. Gateposts are square rubble piers with pyramidal caps. In front of the Surgery is a paved area with a railed enclosure containing a First World War memorial. Modern lean-to and flat-roofed additions are present at the rear of the cottages.

At the end of the terrace, Crown House is constructed from large blocks of roughly dressed local stone laid in courses. It has two widely spaced windows, with the doorway offset to the right (east) end. The windows are 12-pane horizontally sliding sashes; the ground floor windows have large lintels, and the first floor window is directly under the eaves. The slate roof is topped by a large rendered stone and brick ridge stack located to the right (east) of the left-hand (westernmost) windows.

Local climate

Crown House sits in a wetter-than-average part of the UK, with an average of 1,010 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 59% of listed buildings.

It experiences an average of 30 freeze-thaw cycles a year, fewer than 66% 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 1 transaction since 2002
  • Related listed building consents — 3 applications
  • 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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  6. Min y Ffrwd Grade II 39 m
  7. Lychgate at the Church of St Sannan Grade II 66 m
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