The West Loop has been the city's fastest-changing neighborhood for several years, with the advent of corporate offices like McDonald's, Google and Dyson, and a fertile dining scene that this year includes 10 restaurants that received Michelin stars, more than any other part of the city.

Also changing fast: the neighborhood's residential profile, as the multimillion-dollar condo sales pile up in an area that was once known as Skid Row. In the past two years, 31 West Loop homes have sold for $2 million or more, according to Crain's research of the records compiled by Midwest Real Estate Data. In Bucktown and Wicker Park combined, there have been only 24 sales at that price point. Million-plus condos are now old news in the West Loop: In that same two-year period, the neighborhood has seen 187 sales at between $1 million and $2 million.

"I've lived my entire life in the city, and I don't think we've ever seen anyplace turn into a luxury market so fast," says Mark Icuss, one of two Compass agents who represented the condos at Hayden West Loop, 1109 W. Washington Blvd. The building has the biggest concentration of high-dollar sales: 11 Hayden West Loop condos have sold for $2 million or more, two went for over $4 million each in October and a third will close any day now. "Friends" actor David Schwimmer, a founder of Lookingglass Theatre here, has his three-bedroom, 2,300-square-foot loft condominium unit on the fifth floor of a vintage building at Adams and Peoria streets on the market for just under $1.15 million.

"Bucktown took like 15 years to do it," Icuss says. "The difference is that the West Loop has all these corporations coming into the area, filling the neighborhood up with thousands of highly paid employees who want to live in this really cool, very urban neighborhood."