Lagan negotiated a price of £18m for the job, which the client originally estimated at £15m.
It is expected that City Quays 2, on completion in early 2017, will help address the current lack of Grade A office space in Belfast. The building, designed by Grimshaw Architects, will also house waterfront retail space on the ground floor.
Belfast Harbour chairman David Dobbin said: “Earlier this year we completed City Quays 1, of which 85% is currently or soon to be occupied. This demonstrates that there is a high demand for office space of this quality and specification within Belfast. Belfast Harbour is delighted to appoint a local contractor to build what we expect to be an impressive addition to the waterfront, and we are pleased with how quickly the development is progressing overall.”
Lagan Construction Group chief executive Colin Loughran, CEO of, said: “We have a fully committed team to ensure the contract is delivered with the highest safety standards, and within programme and cost requirements.”
Other projects within Belfast Harbour’s City Quays development include a four-star hotel and a 900-space multi-storey car park, both of which are expected to be completed in 2017.