A park and a parking lot Depends on how they do the parking. If they were to build parking garages instead of an open parking lot, I would think they'd have room to build a few businesses. Maybe I'm overestimating the possibilities. Edit: Just an example, the Twins new Target Field is built on an 8 acre plot. Why couldn't the Cubs do something similar? It's a baseball team, they aren't going to be building an amusement park and car wash. I'm talking about restaurants, bars, team shop, etc. A new "Wrigleyville" area that is essentially owned entirely by the Cubs. What are the yearly revenues of the businesses directly surrounding Wrigley (that profit from the Cubs popularity) and what would it do for the Cubs to add that revenue to the club? It is already going to cost them at least $1B to build a new stadium. Then it will cost them several hundred million to build a fake Wrigleyville complex surrounding the ballpark to distract people from realizing they are in Rosemont. They aren't going to do it. Thankfully.