On average, listings lease in the $20's per square foot per year. The St. Petersburg submarket is going through a decline in rates. In the last 3 months, the median rate fell $2 per sqft per year. That's a 8% decrease in rent.
In the last 90 days, 123 listings have been posted online, so you'll want to check back regularly for new listings. About 5% of the available leases in the St. Petersburg 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 3,230 sqft, there are still 0 listings below 2,000 sqft. Most properties in this area are approximately 2 stories. Most buildings in this market were built in 1948 and are Class B.