The typical asking rate per listing is in the $20's per square foot per year. The Stuart submarket is seeing a a boost in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 7% rise in rent.
In the last 90 days, 31 listings have been made available, which means leases are probably leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,350 sqft. Most properties in this market are approximately 2 floors. Most buildings in this area were built in 1984 and are Class A.