Work will start on site within days at the site above one of the entrances to Aldgate East tube station on the fringe of the City of London.
Aldgate Developments confirmed McAlpine as preferred bidder in April 2011 but the scheme has been in limbo ever since.
Now the developer has finally given the green light for the 16-storey Aldgate Tower scheme to start with Brookfield as builder.
The firm’s hoardings have gone up around the site with construction proper set to “commence Q1 2013 and complete in 2014.”
The deal is a major boost to Brookfield which has been hit by two stalled jobs on nearby Bishopsgate including the Pinnacle tower.
Brookfield said Aldgate Tower will be a steel framed structure with a central steel core accommodating lifts, services, stairs and washroom facilities.
It added: “The steel structure will sit on the existing three level reinforced concrete basement. The basement will require technical temporary works and structural reconfiguration.
“The main facades will be clad with a fully glazed, full height aluminium framed curtain wall system. Solar control is provided by soft coatings to all the glazing.”