On average, listings lease in the $10's per square foot per year. The South Bend submarket is going through a a boost in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 7% increase in rent.
In the last 90 days, 29 listings have been made available, which means new listings might be leasing quickly. You'll want to be prepared to make an offer immediately. About 3% of the office spaces in the South Bend are subleases, so you will probably have to focus your search on direct office leases. There aren't many listings below 2,000 square feet on the market, 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 area are close to 2 stories. Most buildings in this region were built in 1971 and are Class B.