Laing O’Rourke has reached practical completion on the iconic Cheesegrater building.
The contractor has handed over the landmark central London project, officially known as the Leadenhall Building, to the Leadenhall Development Company.
The developer – a joint venture of British Land and Oxford Properties – will oversee fit out work with a plan to open the building next year.
At 224m tall, the Cheesegrater consists of 18,000 tonnes of steel, 300 miles of cable and 75,000 sq m of cladding.
Laing O’Rourke built 85% of the structure by value offsite in locations including Northern Ireland and the East and West Midlands.
Steel columns of up to 28m in length were hauled using four cranes, two of which were custom built.
More than 400 tonnes of mechanical and electrical services are housed in the attic of the building.
Laing O’Rourke chief executive Anna Stewart said: “We are hugely proud of our work on the Leadenhall Building.
“To take on the construction of such a complex and unique building has been both challenging and rewarding, and the Laing O’Rourke team and our partners have worked tirelessly to ensure the project has been delivered on time and to the highest standard.”