History

The leat is contemporary with the watermill which is earlier C19; it may be contemporary with the rebuilding of the house. As built it was an estate water mill providing flour etc. but turbines were later installed so that it could provide electric power for the immediate estate.

Glynllifon was the seat of the Wynn family and Sir Thomas John Wynn became the 1st Lord Newborough in 1776. The house was rebuilt after a fire 1836-48 by Edward Haycock, architect of Shrewsbury.

Exterior

Deep stone-walled and cement-rendered leat curves around from the west drive to reach wheel pit powering the overshot waterwheel. On the north-west side is a square reservoir with its own iron sluice gates. Close to the wheel is the surviving paddle for operating the main sluice, part of which remains. Beyond this the leat steps down and runs the remaining distance within a slate-lined trough.

Reasons for Listing

Included for group value with the Watermill as an unusually well-preserved example of a leat serving an estate mill.

External Links

• Cadwr Listing
• Wikidata Q29497784

External links are from the relevant listing authority and, where applicable, Wikidata. Wikidata IDs may be related buildings as well as this specific building. If you want to add or update a link, you will need to do so by editing the Wikidata entry.

Recommended Books

• 
  Sussex: East with Brighton and Hove (Buildings of England) (Pevsner Architectural Guides: Buildings of England)
• 
  Period Property Manual (New Ed)
• 
  The green guide for historic buildings: how to improve the environmental performance of listed and historic buildings
• 
  Gwent/Monmouthshire (Pevsner Architectural Guides: Buildings of Wales)
• 
  Herefordshire (Pevsner Architectural Guides: Buildings of England)
• 
  Gloucestershire 2: The Vale and The Forest of Dean: Vale and Forest of Dean Pt. 2 (Pevsner Architectural Guides: Buildings of England)