Work started in 1881 and the plans called for a 2,000-seat three-storey structure, to be built in the typically flamboyant Victorian style, complete with a superbly detailed cast-iron veranda, running the length of the entire seaward side of the building.
Thousands of top acts appeared there over the years, including household names like George Formby, Ted Ray, Semprini, Petula Clark, Arthur Askey, Bryan Johnson, Bill Maynard ("Greengrass" in Heartbeat), Jimmy Edwards (Whacko!
During its long history, the theatre has regularly hosted political rallies and conferences, with the vast auditorium resounding to the voices of David Lloyd George, Stanley Baldwin, Ramsay MacDonald, Oswald Mosley, Neville Chamberlain, Clement Attlee, Harold Macmillan, Edward Heath and Winston Churchill.
It is reputed that, during the Conservative Party's conference at the pavilion in 1948, a young lady decided to abandon her previous career plans and enter politics.
It was not until the end of the 1960s that the popularity of the pavilion's variety shows began to flag - victims of the twin threats of television and cheap foreign holidays.
The lack of audiences, increasing costs of maintaining the old building and new fire regulations had finally put paid to the pavilion's theatrical tradition—98 years after it had first opened.
These were all cleared out to make way for the Llandudno Dungeon, a walk through horror waxworks exhibition, featuring scenes from the more gruesome aspects of human history, all built at a cost of over £100,000.
Lack of maintenance meant that the exterior of the building deteriorated rapidly but the interior remained in surprisingly good condition, with most of the original architectural and theatre features still in situ.
Despite the grandiose plans, no effort was made to repair or even secure the theatre building, which became increasingly vandalised and a meeting place for local youths.
Attempts by Conwy County Council to redevelop the site have been constantly rebuffed by the current owner, a Worcester businessman called David Taylor.
The stalemate continued for several more years until a surprise announcement in April 2016 by local property developer, Alan Waldron, stated that he had secured the site and planned a new Pavilion building, incorporating underground car parking, commercial space and residential apartments.