Serpentine Cascade from Lake by South Lodge Alltyrodyn is a Grade II listed building in the Ceredigion local planning authority area, Wales. First listed on 13 January 1993. Engine house.

Serpentine Cascade from Lake by South Lodge Alltyrodyn

WRENN ID
pale-mantel-vale
Grade
II
Local Planning Authority
Ceredigion
Constituency
Ceredigion Preseli MP: Ben Lake (PC)
Country
Wales
Date first listed
13 January 1993
Type
Engine house
Address
Serpentine Cascade from Lake by South Lodge Alltyrodyn, Rhydowen, Llandysul
OS grid reference
SN 452 440
Coordinates
52.07323, -4.25901
Source
Cadw listing

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

Description

The Serpentine Cascade is an ornamental garden feature that dates from the 19th century. It consists of a broad serpentine channel that carries the Afon Geyron stream from the overflow of a lake down to a pool at a lower level. The channel has square-section dry-stone rubble sides, and the floor of the cascade is made of large, roughly-split slabs. After two curves, the water cascades into the lower pool over a low drop.

Local climate

Serpentine Cascade from Lake by South Lodge Alltyrodyn sits in one of the wettest parts of the UK, with an average of 1,190 mm of rain a year. This makes it wetter than 91% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 29 freeze-thaw cycles a year, fewer than 67% of listed buildings. Of these, 14 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.

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Nearby listed buildings

  1. Gates & Gatepiers to Alltyrodyn Driveway,South Lodge, Attached Walls, Gates Grade II 79 m
  2. Alltyrodyn, Including Rear Courtyard and Bell Tower Grade II* 335 m
  3. Stables & Coach house at Alltyrodyn Grade II 389 m
  4. Alltyrodyn Home Farmhouse Grade II 404 m
  5. Farm Range on NE side of Farmcourt at Alltyrodyn Home Farm Grade II 449 m
  6. Farm Range on SW side of Farmcourt at Allyrodyn Home Farm Grade II 450 m
  7. Bridge on N Drive to Alltyrodyn Grade II 544 m
  8. The Bath House in grounds to NW of Alltyrodyn Grade II 568 m
  9. Walls to Walled Garden at Alltyrodyn Grade II 606 m
  10. Garden Cottage at Alltyrodyn Grade II 679 m