New York has its iconic Flatiron building, a triangle-shaped structure that was one of the city’s tallest buildings when it opened in 1902. Now, Miami’s version is rising. Vertical construction on Brickell Flatiron, a 736-foot, 64-story luxury condominium building, has passed the halfway mark. When topped off later this year, it will be one of the tallest residential buildings in the Southeast. The building’s shape harmonizes with its location where Brickell Plaza angles closer to Miami Avenue as it approaches Southwest 11th Street. Key architects on the project are Massimo Iosa Ghini of Italy, who handled the interior, and Miami’s Luis Revuelta, who came up with the curvy façade. Approximately 75 percent of Brickell Flatiron’s 549 units are under hard contract, with prices ranging from $500,000 to $15.5 million. The developer is CMC Group, which is led by founder Ugo Colombo.