The typical asking rate per listing is in the $30's per square foot per year. The Hillsborough County region is going through a an increase in rates. In the last 3 months, the median rate rose $4 per sqft per year. That's a 15% rise in rent.
In the last 90 days, 306 listings have been made available, so you'll want to check back regularly for new listings. About 4% of the available space in the Hillsborough County 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 available, so finding a space for a small business might be tough.
Even though the median size is 2,960 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are around 1 floors. Most buildings in this market were built in 1957 and are Class B.