There are some very helpful reports on the Remodeling Magazine website. These can give you an idea of how much you could likely get back from your remodeling investment, if you were to sell your home in the future after a remodeling project. These are grouped by types of project, and show averages. Of course the return on investment can vary greatly with individual projects, by how much you invest, how well your level of luxury fits with others in your neighborhood, and how much later you might be selling.
Here are some links you might want to view:
Link to cost of remodeling survey: Remodeling Magazine Cost vs. Value Report 2007
A second link is to a more updated survey – the new Cost vs. Value Report for 2008 – 2009
The above link is for the National survey. Below is one more link – more tailored to our region of the country (“East-North-Central”), which includes MI, OH, IN, IL, WI:
It is interesting to compare the differences between the 2007 survey and the more recent one (2008 – 2009).