He described the development as a "mini Canary Wharf" occupying 3m sq ft of office space.
This week, he planted his first flower of his project, in Canary Wharf, east London.
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Claire Lomas, 32 from Eye Kettleby, Leicestershire, has taken 12 days to get to Canary Wharf.
And so far, at least, Canary Wharf seems to be weathering the financial storm.
Canary Wharf in Docklands has poached several big banks from the City in the past decade.
Standing at 235m (770ft), One Canada Square in Canary Wharf is second to the Shard in height.
After losing ground to Canary Wharf by being conservative, central London is becoming ultra-modern in its architecture.
Tower Hamlets is home to London's second financial centre, Canary Wharf, which paid for half the council's bid.
The eight-race tour started in Durham on Tuesday and ends at Canary Wharf in London on 16 June.
Alwaleed has a number of investments in the U.K., including a stake in the Canary Wharf office development.
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More space was let at Canary Wharf in the first quarter of this year than in all 2003.
About 270, 000 people currently work in the City, but there are already another 50, 000 working in Canary Wharf.
It is also close to the Canary Wharf business district and London's City Airport -- which was not affected.
Some skyscrapers in Manhattan and London's Canary Wharf have new signs on them.
Tracey Vinyard-Thomason is riding her mobility scooter from her home in Thornton-Cleveleys to her father's home in Canary Wharf, London.
When the Docklands enterprise zone expired, there were just 7, 000 people working in Canary Wharf, it says, compared with 90, 000 today.
"We're trying to extend dwell time in a positive way, " says Camille Waxer, chief administrative officer at Canary Wharf Group PLC.
Defenders of the Canary Wharf tower point out that it has added a welcome focal point to scores of London's views.
The best known - and probably the most successful - was Canary Wharf, now the hub of the UK's financial services industry.
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HSBC, Morgan Stanley and Lehman Brothers have been decamping to Canary Wharf.
Gerald Hines turned down London's Canary Wharf, which later bankrupted Canada's Reichmann family: He thought there wasn't enough mass transit serving the site.
Rents in Europe's biggest business district, with over 150% more office space than London's Canary Wharf, have held up well in the recession.
In London many small hedge funds cluster in Mayfair, far west of the City and Canary Wharf where the big banks camp out.
Mayor Ken Livingstone hopes it will play a large role in regenerating south-east London by creating better links to Canary Wharf and the City.
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Gerald Hines turned down London's Canary Wharf, which later bankrupted Canada's Reichmann family: He thought there wasn't enough mass transit to serve the site.
The company owns 850, 000 square feet of retail space around Canary Wharf, home to many of London's biggest investment banks and other financial-services companies.
In Canary Wharf and London's two main business districts, the City and the West End, the three-year gloom in London's office market is over.
We were granted rare filming access on site at Canary Wharf, where workers spoke of their fears watching World Trade Center staff who were trapped.
Twice as large as Belfast's Titanic Quarter and four times the size of London's Canary Wharf, it is the largest development site in public ownership.
In comparison Canary Wharf occupies 15m sq ft of office space.
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