Dublin department store Brown Thomas will unveil the first phase of its €9m (£7.3m) revamp next month.
The Grafton Street store – owned by the Weston family, who also own Selfridges – is refurbishing the accessories department and adding a new beauty hall on the 24,000 sq ft ground floor.
According to Brown Thomas managing director Stephen Sealey, the first phase will introduce accessories shop-in-shops for Prada, Céline and Tiffany & Co and a display area for other luxury brands.
By December, there will be shop-in-shops for Saint Laurent, Miu Miu, Bottega Veneta, Gucci, Michael Kors, DKNY and Marc by Marc Jacobs. New brands will also be added, but Sealey declined to name any. The beauty hall is due to open in September.
The refurbishment started in March and will be completed before Christmas. Other floors will be given a makeover in 2015 and 2016, although Sealey said this was very much at the planning stage.
Brown Thomas is also expanding its online offer, which was launched in autumn 2013 with accessories, beauty and swimwear. Half of all in-store products will be available online by autumn.
Last week, sister store Selfridges announced a £300m investment at its Oxford Street store, which Drapers has learned is being led by architects David Chipperfield.
It will expand the overall floor space by around 10% to 580,000 sq ft. The accessories space will double in size to 50,000 sq ft, opening in 2016.