On average, listings lease in the $20's per square foot per year. The Fountainebleau region is experiencing a an increase in rates. In the last 3 months, the median rate went up $30 per sqft per year.
Compared to the rest of the Gold Coast market, the Fountainebleau submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 3 listings have been listed, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 167% of the listings in the Fountainebleau are subleases, so you might be able to snag a great spot on a short term. 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 1,390 sqft. Most buildings in this market are approximately 4 floors. Most buildings in this region were built in 1993 and are Class B.