Chicago public schools face enrollment crisis with 150 half-empty schools, costing up to $93,000 per student in some cases, as the district lost 70,000 students over the past decade.

A recently built 210-foot tower at 60 East 86th Street with 14 apartments, where prices ranged from about $7 million to over $19 million. It replaced a pair of low-rise buildings with 10 ...