Remodeling Cost

[Anant B.]

I am an real estate investor primarily operating in the markets around Chicago suburbs.  I am trying to find out from experienced forum members if they have some kind of data consolidated from their actual works the cost metrics ($/Sq Ft) for a gut rehab project with possibility of extensions on the second floor for flips?

I understand this is not an easy task and may depend on many factors including geographic locations and conditions of the property. But I also understand if you have done several such projects, metrics tend to average out to a more reliable estimate predictor with a reasonable limits of variance.

Any help from the experienced members would be very much appreciated.