Liffey Valley Shopping Centre has announced plans for a €26m extension bringing 450 new jobs to west Dublin.
The new build will see the centre grow by 16pc in size and will house a new Penneys store by late 2016.
Six new restaurants, upgrades to the existing VUE Cinema and more than 3,300 sq/m of civic space will also take residence in the new 10,500sq/m three-story building.
The upgrades will see a new western-end facade being built creating up to 225 construction jobs in the process.
A further 450 full and part-time positions will be available upon completion - bringing the total number of people employed in the centre to more than 2,500.
Centre director Denis O'Connell said it marked an exciting new phase for Liffey Valley.
"We are delighted to commence this €26m investment in the retail, leisure and community facilities on offer here," he said.
"Our expansion plan signals a promising new chapter for Liffey Valley, which has evolved into a major shopping destination for west Dublin and beyond."
Now in their 17th year of trading, Liffey Valley boasts full occupancy with 100 tenants including anchor brands Marks & Spencer, Next, Dunnes Stores and Boots.
The company behind the centre, Hines Ireland, say the planning process began more than two years ago.
"We have been developing a new vision for Liffey Valley. Our expansion will be a key element of local economic development," senior managing director Brian Moran said.
Mr Moran added that now is the perfect time to re-invest in the "strategically located centre".
He said the new expansion plan, combined with €2m invested in customer facilities during 2014, will ensure that Liffey Valley will remain "one of Ireland's leading shopping destinations".
The company will partner with John Sisk & Son to roll out the project "as quickly as possible" to deliver the expansion.