Most listings are in the $20's per square foot per year. The Dunedin region is seeing a a boost in rates. In the last 3 months, the median rate rose $4 per sqft per year. That's a 20% increase in rent.
In the last 90 days, 2 listings have been posted online, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 700% of the office spaces in the Dunedin are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,360 sqft. Most buildings in this market are around 2 stories. Most buildings in this area were built in 1983 and are Class A.