The Churn Works, Northgate, Haverfordwest, were built by John Llewellin (a cooper) between 1883-1885, by which time the butter churns produced by him were regarded as of first-rate quality all over the country and later the world. In about 1900 the works included saw-mills, a drying kiln, drying sheds and a corn mill. Power came from a 15hp steam engine. In the early part of the 20th century, a series of large factory churns and butter workers were manufactured. In the 1930s they were installed in most of the largest dairies in the country. During the Second World War the firm made carts, etc. for the army; thereafter most of the business was retail and repair only (however, see note 1). In 1966 the property was leased to an agricultural merchant and in 1976 it was bought by the District Council.
The main three-storey building was of local rubble masonry in lime mortar with ashlar quoins and segmental arched brick heads to the windows. The hipped roof was slated.
The buildings were demolished in 1987 to make way for a roundabout.
RCAHMW, 2010.

Note 1: An advertisement on p.66 in 'Dairy Industries' journal of January 1958, shows for sale a 'full range of sizes and types' of electrically-driven 'Combined Churns & Butterworkers'; also noted in the advertisement is that G.Llewellin & Son, Ltd. was established in 1789.
B.A.Malaws, RCAHMW, 16 March 2018.