Plans for the eight-storey office building in Bristol were initially approved in 2012 with BAM named preferred bidder four years ago.
Developer CEG estimates that the 200,000 sq ft EQ development close to Temple Quay will sustain over 500 construction jobs annually during the two-year build programme.
The striking glass office building at 111 Victoria Street, close to Bristol Temple Meads Station, has been designed by architect Aukett Swanke to target a BREEAM Outstanding rating.
Designed as a Smart Tech enabled building, there will also be fewer touch points, increased air changes and air quality sensors, benefitting occupiers in a post-Covid world.
Neil Dorrington, construction director for Bristol-based BAM Construction, said: “This must be one of the most ambitious schemes ever constructed in Bristol, which is a tremendous testament to CEG.
“BAM’s early and close association with the development of it over a prolonged period means we can bring our expertise in digital construction and our sustainability credentials to bear even more so than on many other schemes.”