On average, listings lease in the $10's per square foot per year. The Porter County region is going through a an increase in rates. In the last 3 months, the median rate increased $18 per sqft per year.
In the last 90 days, 7 listings have been made available, which means office spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 71% of the office spaces in the Porter County are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,200 sqft. Most properties in this region are approximately 1 stories. Most buildings in this market were built in 1979 and are Class B.