On average, listings lease in the $20's per square foot per year. The Dayton submarket is experiencing a a boost in rates. In the last 3 months, the median rate increased $21 per sqft per year. That's a Inf% increase in rent.
In the last 90 days, 35 listings have been posted online, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 6% of the available space in the Dayton are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 5,830 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this market are around 3 floors. Most buildings in this market were built in 1971 and are Class B.