Most listings are in the $10's per square foot per year. The Michigan City region is seeing a a rise in rates. In the last 3 months, the median rate went up $16 per sqft per year.
In the last 90 days, 3 listings have been made available, which means leases are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 33% of the available leases in the Michigan City are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,500 sqft. Most buildings in this market are around 1 stories. Most buildings in this market were built in 1969 and are Class C.