The 74-story building is Helmut Jahn’s last design.

The Chicago Plan Commission on Jan. 18 approved a $700-million development that, as presented, would include the city’s sixth-tallest building.

Architect Michael Green thinks most cities don’t need high-rises taller than 30 stories.

In a stunning comeback from near-collapse at the turn of the millennium, the Council on Tall Buildings and Urban Habitat is flourishing.