The centre was opened in 1989. In 1997, Erneside was acquired by the Diageo Pension Trust, the company helped the centre double in size, once in 2000 and another in 2008. One of its anchor tenants,
Asda, closed its doors in the centre in 2007 to move to bigger premises nearby. In 2012, Erneside was announced to get a major expansion that would see it get a larger second floor, a hotel and a cinema but it never happened, the idea was brought up again in 2014 and 2015 but in a downsized state. In 2015, the centre was sold by the Diageo Pension Trust to Tristan Capital Partners and Ellandi for £34.25m. In 2025, Erneside lost 2 tenants (
Harry Corry and anchor tenant Marks & Spencer) to the new Lakelands retail park in the outskirts of Enniskillen, the centre also opposed a proposal at the retail park where
Lidl is planning to build a store, saying it will hurt Enniskillen's town centre if it gets the go-ahead. In December 2025, Erneside was sold by Tristan and NewRiver for £12.4m to a consortium led by Ian McMahon under holding company Muntermellan Limited, the same consortium owns the
Rushmere and
Foyleside shopping centres. The centre is set to go through a massive revamp similar to the 2 centres have already gone through, making the biggest change for the centre since 2008, with hopes of Erneside becoming as successful as Rushmere and Foyleside. In February 2026, Erneside announced a major investment program which would completely overhaul the centre for the first time since 2008, it would get a more modernised design with a more luxurious appearance. == Stores ==