Belfast Harbour’s Chief Executive, Joe O’Neill, describes the project as one of the largest strategic investments ever undertaken by Belfast Harbour.
“In addition to supporting 500 local construction jobs, the office will build upon City Quays’ success by providing strategic accommodation to meet demand for Grade A, city-centre office space.”
Main contractor Farrans Project Manager Noel Cosgrove said: “A hundred years ago or so the site was actually part of a much wider river and so the land is made-ground which was more recently used to accommodate warehouses.
“We had to do a soil improvement programme and then install more than 480 piles to support our raft foundations.”
Situated approximately 1.2m below ground level, the raft is 1.7m-thick and supports the building’s core and steel frame.
The 750mm-diameter CFA piles, which are up to 34m deep, are said to be the longest CFA’s ever installed in Ireland.
As well as providing stability to the steel frame, the core accommodates six lifts, two stairwells and the building’s washrooms and toilets.