Llewesog Isaf is a Grade II listed building in the Denbighshire local planning authority area, Wales. First listed on 29 November 1999. House.
Llewesog Isaf
- WRENN ID
- bitter-beam-willow
- Grade
- II
- Local Planning Authority
- Denbighshire
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 29 November 1999
- Type
- House
- Address
- Llewesog Isaf, Llanrhaeadr, Denbigh, Llanrhaeadr-Yng-Nghinmeirch
- OS grid reference
- SJ 075 632
- Coordinates
- 53.15848, -3.38373
- Source
- Cadw listing
Description
Llewesog Isaf is a two-storey house constructed primarily of limestone rubble, with a red/brown brick facade on a limestone rubble plinth, and sandstone quoins. The roof is slate, with reduced end chimneys to the original section, featuring early 20th-century upper courses.
The original part of the house features a symmetrical three-bay facade. A central entrance is sheltered by a modern slated wooden porch, which is open to the front and sides. The original moulded doorcase has a rectangular two-pane overlight; a modern boarded door is now in place. To the left of the entrance is a late Georgian twelve-pane sash window within a primary opening, with an exposed timber lintel and a flat arch constructed with brick voussoirs. A similar window is located to the right, with an early 19th-century twelve-pane wooden window, incorporating an eight-pane lower sliding sash. The first-floor windows on the front facade are similarly styled. Above the porch is an original section of brickwork featuring a pegged oak cross window. The lower mullioned section of this window is a 20th-century replacement, with modern plain glazing. A dentilated stringcourse runs between the ground and first floors, incorporating a row of diagonally-set bricks between two header courses.
An early 19th-century, L-shaped addition extends from the right side, constructed of limestone rubble and continuously roofed with the main section. A former entrance on the ground floor left side has been reduced to a window, with a first-floor window above. Both have cambered heads with rough-dressed voussoirs and glazing similar to the front windows, the ground-floor window being a 20th-century copy of the original style. The right gable end of the addition features large, segmentally-arched windows to the ground and first floors, each of three-light mullioned and transomed design with eighteen-pane glazing and a central sliding sash section. A contemporary one-and-a-half storey rear projection adjoins the addition on the right side. This has a pegged-framed entrance with a boarded door and a six-pane modern window; the latter was formerly an entrance and has a cambered brick head. A modern garage extension is attached to the right side. The rear of the main block includes a full-height, gabled stair projection.
The interior of the house was not inspected during the survey.
Local climate
Llewesog Isaf sits in a wetter-than-average part of the UK, with an average of 960 mm of rain a year. This makes it wetter than 75% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 59% of listed buildings.
It experiences an average of 28 freeze-thaw cycles a year, fewer than 68% 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
- No sale records on file
- 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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