Most listings are in the $20's per square foot per year. The Port St. Lucie region is seeing a a boost in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 3% increase in rent.
In the last 90 days, 98 listings have been listed, so you'll want to check back regularly for new listings. About 2% of the available space in the Port St. Lucie 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.
The standard measurement for office space in this area is around 1,170 sqft. Most properties in this region are around 1 floors. Most buildings in this market were built in 2004 and are Class A.