The 45-metre high core was formed in just 15 working days at an average speed of three metres a day by a 40-strong team.
Completion is scheduled for spring 2016. The building is being developed speculatively under the Workplaces by Skanska banner adjacent to The Monument itself, the 61-metre high Doric column that was built in 1677 to commemorate the Great Fire of London.
Total development cost is put at £57m and the construction contract is valued at £33m.
Skanska development manager James Willats said: “It’s great that The Monument Building is taking shape so quickly. On completion next year it will be a welcome addition to the City landscape, offering Grade A office accommodation and exciting retail opportunities.”
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