[1] Following a significant growth in population, largely associated with the lead mining and cotton milling industries, Holywell became an urban district in 1894.

[1] The new building was designed by Richard Lloyd Williams in the Gothic Revival style, built by Abel Jones of Rhyl in rubble masonry with ashlar dressings and was completed in 1896.

On the ground floor, there was an arched doorway with a fanlight flanked by colonettes supporting a hood mould; the tower, which was supported by machicolated brackets, took the form of a panel bearing an inscription recording the coming of age of Pyers William Mostyn surmounted by a projecting clock, a carved roundel and an octagonal bellcote.

[8][9] After the empty town hall began to deteriorate, the structure behind the façade was demolished and replaced by a modern office complex in 1986.

[1] After a grant of £495,000 from the National Lottery Community Fund was approved in March 2007, an extensive programme of refurbishment works was carried out at the town hall and completed in November 2012.