Bryn Derwen with Railings to Garden is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 26 February 2003. House.

Bryn Derwen with Railings to Garden

WRENN ID
waiting-pillar-meadow
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
26 February 2003
Type
House
Address
Bryn Derwen with Railings to Garden, Llanwddyn Village, Llanwddyn
OS grid reference
SJ 017 189
Coordinates
52.7594, -3.45722
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Bryn Derwen and Lake Cottage are a pair of symmetrically planned cottages built in the 19th century. They feature irregularly coursed rock-faced slate masonry and a slate roof, with a shared central chimney stack made of both stone and red brick. The roof is adorned with a ridge of decorative red crested tiles. The cottages have prominent timber bargeboards on the shared front gable, which is half-hipped, as well as on the side gables. Each cottage has an open porch at the front corners, with a boarded door and a small window within the porch. Above the porch, there is a four-pane sash window in the main gable, complete with a stone sill and lintel. Below, a three-light sash window also features a stone sill, lintel, and relieving arch. The side elevation includes a three-light upper window with a stone sill and lintel, along with a small attic light. In front of the cottages, there is a distinctive railing made of lattice-type iron or steel plate, which is bolted together.

Local climate

Bryn Derwen with Railings to Garden sits in a wetter-than-average part of the UK, with an average of 1,120 mm of rain a year. This makes it wetter than 88% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 78% of listed buildings.

It experiences an average of 55 freeze-thaw cycles a year, more than 95% of listed buildings. Of these, 34 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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  • Detailed attributes — period, style, materials, features
  • Flood risk assessment
  • Radon risk assessment
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Nearby listed buildings

  1. Lake Cottage with Railings to Garden Grade II 11 m
  2. Telephone Call-box near Bryn Vyrnwy Grade II 72 m
  3. No. 5 Glyndu, Llanwddyn Grade II 98 m
  4. Bryn Vyrnwy Grade II 102 m
  5. No. 6 Glyndu, Llanwddyn Grade II 104 m
  6. No. 1 Glyndu, Llanwddyn Grade II 112 m
  7. No. 2 Glyndu, Llanwddyn Grade II 117 m
  8. No. 3 Glyndu, Llanwddyn Grade II 123 m
  9. No. 4 Glyndu, Llanwddyn Grade II 127 m
  10. Water Gauge House on Weir below Lake Vyrnwy Dam Grade II 134 m