Most listings are in the $20's per square foot per year. The Osceola County region is experiencing a an increase in rates. In the last 3 months, the median rate went up $7 per sqft per year. That's a 33% rise in rent.
In the last 90 days, 38 listings have been posted online, which means leases are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 8% of the available leases in the Osceola County are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 region are close to 2 stories. Most buildings in this area were built in 1988 and are Class A.