History in Structure

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Felin Sarn

A Grade II* Listed Building in Deiniolen, Gwynedd

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Latitude: 53.1462 / 53°8'46"N

Longitude: -4.1368 / 4°8'12"W

OS Eastings: 257187

OS Northings: 363138

OS Grid: SH571631

Mapcode National: GBR 5P.5X5B

Mapcode Global: WH54M.F5BW

Entry Name: Felin Sarn

Listing Date: 21 May 2003

Last Amended: 21 May 2003

Grade: II*

Source: Cadw

Source ID: 80871

Building Class: Industrial

Location: On S side of minor road through village, about 1km E of junction with B 4547.

County: Gwynedd

Town: Llanddeiniolen

Community: Llanddeiniolen

Community: Llanddeiniolen

Locality: Clwt-y-Bont

Built-Up Area: Deiniolen

Traditional County: Caernarfonshire

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The building probably dates from the 1880s; and was a mill used for processing raw material into slates for school use. The waterwheel, approximately 30 feet (9.2 metres) in diameter is said to be dated 1885, and is from the De Winton foundry at Caernarfon.


Two storey building in grey brown stone with red brick dressings; slate roof.
Front of building faces road (NW); on upper floor, 11 windows with red brick dressings, 16-pane sash glazing (2nd and 3rd windows blocked). On ground floor, alterations include insertion of 2 broad vehicle entrances; apart from 2 windows at R side, other openings are blocked.


Queen post roof trusses. Upper floor removed in left hand side of building, but remains in right hand side. In enclosed wheel pit near centre of building is 9 metre diameter iron overshot waterwheel from the De Winton foundry in Caernarfon, said to be dated 1885. Control mechanisms remain at upper floor level. Line shafting remains (suspended from roof trusses).

Reasons for Listing

Graded II* for special interest of very large in-situ waterwheel.

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