GAT62183

Heneb Historic Environment Record

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Upper Mill, Beaumaris

Primary Reference Number (PRN) : 62183
Trust : Gwynedd
Community : Beaumaris
Unitary authority : Ynys Mon
NGR : SH5992076037
Site Type (preferred type first) : MODERN MILL

Summary :
A mill of mid 19th century date.

Description :
The mill survives as a rectangular, rootless, stone building, consisting of three floors and standing to eaves height in places. Where lintels are visible they appear to be brick built externally, with timber inside. In the northern wall a large jagged opening exists on the ground floor and extends up into the first floor area, with all lintels missing. A doorway stands on the second floor. This northern wall forms one of the gable walls of the structure. The eastern wall stands to eaves height at the northern end, but is collapsed to the south. There are several openings in the northern end. The southern wall contains a large opening at ground floor level, with a horizontal opening above on the first floor. A further vertical opening above this on the second floor may have formed a doorway. A square-shaped iron structure, approximately 0.5m sq. is set into this wall, and may have formed casing for a timber support or a possible water chute. The western wall stands to eaves height, with no lintels apparently remaining. An adjoining structure lies on the west side, the walls of which stand above the level of the ground floor of the main building, with their footings lying at approximately first floor level. They stand to a maximum height of !m. A former water channel, or !eat, runs towards the main mill building from the west, passing directly to the north of the smaller structure and bounded to the north by a length of substantial stone wall. The I eat appears to feed water through the west wall, but the exact arrangement is difficult to make out. The water wheel was hung on the exterior of the south wall. We have been informed by Sir Richard Bulkeley that one of the quoins contains an inscribed 18th century date, but this was not seen during the site visit. The existing structure, from its layout and size, probably dates from the mid 19th century, but it is likely that, once the vegetation has been removed, it will be possible to see different phases of construction, with at least part of an 18th century building present.

Sources :
Davidson, A. , 1999 , Mill Race, Beaumaris: Archaeological Report (

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February 7, 2026, 3:08 pm

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