The typical asking rate per listing is in the $20's per square foot per year. The Porter County region is going through a a boost in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 14% increase in rent.
In the last 90 days, 7 listings have been posted online, which means office spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 129% of the office spaces in the Porter County are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 5,200 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this area are approximately 1 stories. Most buildings in this region were built in 1980 and are Class B.