Carillion has been awarded a £91m contract by Helical Bar to deliver Phase 1 of its Barts Square development in the City of London.
The first phase of this development includes residential, offices and mixed use facilities on a 2.3 acre site that includes the area formerly occupied by Barts Hospital.
Phase 1 demolition work has begun and construction will start in the summer of 2015. Completion is scheduled for summer 2017.
Carillion has also won a £33m contract for residential developer St George Central London to build 177 new apartments at the award winning Beaufort Park development in North London. This will be Phase 10 of the Beaufort Park project, which is being built for the Notting Hill Housing Association to provide affordable homes. Work on the site has started and completion is scheduled for autumn 2016.
Carillion chief executive Richard Howson said: "Winning these prestigious contracts builds on the strong, high-quality order book we have in our UK construction services business. We are delighted to be working with Helical Bar and St George on these projects and share their vision of not simply constructing buildings, but helping to create communities in which people enjoy living."