Ancient Monuments

History on the Ground

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Greenfield Valley Mills

A Scheduled Monument in Holywell (Treffynnon), Flintshire (Sir y Fflint)

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Latitude: 53.2823 / 53°16'56"N

Longitude: -3.216 / 3°12'57"W

OS Eastings: 319021

OS Northings: 376837

OS Grid: SJ190768

Mapcode National: GBR 5ZZH.J3

Mapcode Global: WH76K.KRSL

Entry Name: Greenfield Valley Mills

Scheduled Date: 22 December 1977

Source: Cadw

Source ID: 3433

Cadw Legacy ID: FL160

Schedule Class: Industrial

Category: Industrial building

Period: Post Medieval/Modern

County: Flintshire (Sir y Fflint)

Community: Holywell (Treffynnon)

Built-Up Area: Holywell

Traditional County: Flintshire


The monument consists of the remains of a mill, a factory used for processing raw materials. This complex consists of a group of water mills which provided power for a series of industries in the Greenfield Valley; viz: [a.] Brass and copper battery works 1766-1802, rolling mills 1823-1898; [b] Meadow Mills-rolling mill 1787-1860s; ( c) Cotton Mill - 1785-1840.

The monument is of national importance for its potential to enhance our knowledge of manufacturing techniques and processes. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structure itself may be expected to contain archaeological information concerning chronology and building techniques.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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