Since 2009, developers have built 3,075 new condo units in Flushing, second only to Williamsburg, Brooklyn, in terms of condo construction citywide, according to Nancy Packes Data Services.

“I remember a decade ago when people were embarrassed about living in Flushing,” said Helen Lee, an executive vice president with F & T Group, one of the developers of Tangram, a 1.2 million-square-foot, mixed-use complex named after the Chinese puzzle.

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