Lakhta Center – a large scale project of the construction of a modern business area in the north-west of Saint Petersburg. Opening in 2018.
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Europe's tallest skyscraper revealed as it nears completion
The twisted supertall skyscraper, which finished construction in June 2018, is the 13th tallest building in the world. Its 87 floors are currently being fitted out.
Developers Gazprom, a Russian gas company that will occupy most of the building, also claim it to be the "northernmost skyscraper in the world".
The skyscrpaer is formed of structures tapering round a core. Photo by Viktor Sukharukov
Kettle said he was influenced by St Pertesburg's Peter and Paul Cathedral when designing the skyscraper, which is formed of five towers tapering around a diminishing circular core.
"My sense was very much to create something that was as light and elegant as the historical forms, capturing the changes in daylight in a similar way to that of the golden domes and spires," he said in his statement.
"The tower was designed as a simple organic spire with asymmetrical movement in its skin, to be seen as a singular landmark at city scale."
Piles were driven 82 metres deep into the city's soft ground in order to anchor the supertall tower and provide stable foundations.
Wind speeds at an elevation of 400 metres in St Petersburg can reach 87 miles per an hour, necessitating a specialised structural system to resist the strong winds.
Its smooth glass facade is formed of 16,500 pieces of curved glass, with a system of automatic shutters and valves to make it energy efficient. Energy recuperating elevators, a vacuum waste disposal system and cold accumulators are some of the other technologies employed by the tower to make it more sustainable.
Russian gas company Gazprom built it to house its new headquarters
A publicly accessible observation deck will be located at the 360-metre point. A planned restaurant will be Europe's highest panoramic restaurant.
Located nine miles from the centre of St Petersburg on the coast of the Gulf of Finland, the 400,000 square metres of the Lakhta Centre complex also includes a 24-metre-tall entrance archway, a separate boomerang-shaped multi-storey building, and a covered carpark.
Two thirds of the office space at the Lakhta Centre will be occupied by Gazprom's new headquarters, which will employee 8,000 workers on the site. A third of the complex will be given over to public spaces, including a science and education centre, a spherical planetarium, a concert hall, amphitheatre and several squares.
In New York City, French architect Jean Nouvel's 320-metre-high supertall tower has recently topped out, and in Shenzhen Kohn Pedersen Fox's 400-metre-high bullet-shaped skyscraper is nearing completion.
Photography is by Slava Korolev, unless stated.