In the city, construction cranes have stirred, and long-mothballed property developments are swarming with workers.
By law architects must inform the CAA if their buildings or construction cranes exceed a certain height.
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If you visit China, one of the most striking images is of construction cranes dominating the skyline.
First in Tokyo, where the construction cranes are numerous again and interest rates are being kept ridiculously low.
But the surrounding area is set to be increasingly dominated by construction cranes.
After federal laws limited big choppers, some developers sent photographers 150 feet up on construction cranes or took pictures from different floors of nearby existing buildings.
It has grown into a city of 1.3 million people, with the beginnings of a skyline, several five-star hotels and construction cranes dotting the horizon.
Construction cranes line Manila's skyline, and the hotels are fully booked.
Glassy buildings glint in the hot sun, as cranes and foreign construction-workers line the shores of Tripoli and Benghazi, Libya's first and second cities, where stretches of sand stood empty a few years ago.
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Cranes still turn on the construction sites, winching up ever more luxury homes and skyscrapers (even though many developers have been reduced to offering them rent-free in order to lure tenants).
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At the World Trade Center construction site in Lower Manhattan, crews were readying 10 tower cranes for high winds ahead of Hurricane Irene's arrival.
Cranes cluster like praying mantises on every horizon, and the shudder of construction work provides a constant soundtrack.
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