The typical asking rate per listing is in the $10's per square foot per year. The Allen County submarket is going through a an increase in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 5% increase in rent.
In the last 90 days, 99 listings have been made available, so you'll want to check back regularly for new listings. About 4% of the available space in the Allen County are subleases, so you will probably have to consider a longer term lease. 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 properties in this market are approximately 1 floors. Most buildings in this region were built in 1976 and are Class B.