Greenfield (Welsh: Maes-glas) is a village in the community of Holywell, Flintshire, north-east Wales, on the edge of the River Dee estuary. At the time of the 2001 census it had a population of 2,741,^[1] which remained unchanged in the 2011 census.^[2]

Quick Facts Population, OS grid reference ...

Greenfield Welsh: Maes-glas
Old cotton mill, Greenfield
Greenfield Location within Flintshire
Population	2,741 (2011 census)
OS grid reference	SJ185755
Principal area	Flintshire
Preserved county	Clwyd
Country	Wales
Sovereign state	United Kingdom
Post town	HOLYWELL
Postcode district	CH8
Dialling code	01352
Police	North Wales
Fire	North Wales
Ambulance	Welsh
UK Parliament	Delyn
Senedd Cymru – Welsh Parliament	Delyn
List of places UK Wales Flintshire 53.289°N 3.210°W / 53.289; -3.210

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The Welsh language name of the village, Maes-glas or Maesglas, has the same meaning as "Greenfield".^[3] The name Maesglas was recorded in 1579,^[4] with the English version recorded as "Fulbroke al[ias] Greneffelde" as early as 1540.^[3]

Greenfield is best known for its history of papermaking. A paper mill has been on this site since 1770. The site was chosen due to the constant water flow from the stream which comes from the St Winefride's Well. The speed this site developed was one of the reasons that Greenfield is still linked with the start of the Industrial Revolution. In the mid 19th century up to 80 businesses had set up in the mile stretch between Holywell and Greenfield The remains of some can now be seen as conservation and industrial archeological projects have been undertaken in recent years. Among the businesses were a copper mill, a flannel mill, a flour mill, shirt-makers and soft drink works, W Hall & Son (which still exists today). Greenfield was also home to two Courtaulds rayon factories and a sulphuric acid plant from 1936 to 1985.^[5]

In 1842 William Crockford, of London gambling club fame, built the Zinc Smelting Works on the northern side of the coast road adjacent to the gas works. The factory was said at the time to be the most modern in Britain with its own dedicated railway to the nearby Crockford Wharf. Crockford died in 1844 and his widow Sarah continued running the factory with the assistance of a daughter and two sons - Fanny, Henry and Charles Crockford, the latter of whom patented several zinc smelting inventions. The family also laid a mineral railway from Pantasaph to the factory, converted Parys Mine works into a limestone crushing plant and ran a cement factory at Bryn Celyn. With industrial changes and periodic managerial problems output from the zinc works ceased by the turn of the century and derelict buildings were largely removed by 1928.

Greenfield's oldest building is Basingwerk Abbey, founded circa 1132 by Ranulph de Gernon, 2nd Earl of Chester. It was an important monastic centre in north Wales; both Llywelyn ap Iorwerth and Dafydd ap Llywelyn were patrons. In 1536, abbey life came to an end with the Dissolution of the Monasteries. In ruins since the time of Oliver Cromwell, it is in the care of Cadw (Welsh Heritage). The ruins are now part of Greenfield Valley Heritage Park, with the adjacent grounds home to an agricultural museum.^[6] Many of the museum's buildings were moved stone by stone from the surrounding area, including an old school house.

Greenfield is an electoral ward of the town of Holywell, within the Flintshire County Council local authority.

The village is within both the Delyn Senedd constituency and the Delyn UK parliamentary constituency.

The B5121 road from Greenfield to Holywell is the road which passes the St Winefride's Well, which Holywell is known for.

Greenfield's main claim to fame in recent history is possibly the hidden Gatso speed camera, on the A548 road leading to Bagillt, near the old disused railway bridge. It was voted the worst-placed speed camera in the UK by the Association of British Drivers,^[12] despite the fact that until 2009 Arrive Alive conducted their Speed Awareness courses at the Greenfield Business Centre, based in the original paper mill building 200 yards away.

The old village primary school, which was just under 100 years old, was controversially demolished in 2005, after much opposition from local residents. A covenant in the deeds of the land on which the old school was built, stated how the land was sold by the Mostyn Family on the condition it was only to be used solely for educational purposes. Although this point was expressed to Flintshire County Council, they proceeded with the demolition. A new school was built to replace it, but in a different part of Greenfield. Both schools were named Ysgol Maesglas (Greenfield School).

• Holy Trinity Church, Greenfield