When I visited the Theurer-Wrigley House last August it hadn't yet been listed in the MLS. The landmark home at 2466 N Lakeview, which is more commonly known as the Wrigley Mansion, was listed for sale in October at $9,500,000, the current asking price.
I visited the landmark Francis J. Dewes Mansion in November of 2010. The home, at 503 W Wrightwood, was listed for sale a little over a year ago at its current asking price, $9,900,000. The second and third parts of the video tour are at YouTube.
The Dewes and Wrigley homes are the highest-priced listings in Chicago. It isn't unusual for homes in this price range to take a year or more to sell.
Both homes are listed with Koenig & Strey's Mary Bennett.