On average, listings lease in the $60's per square foot per year. The South Miami submarket is going through a an increase in rates. In the last 3 months, the median rate increased $8 per sqft per year. That's a 14% increase in rent.
Compared to the rest of the Gold Coast market, the South Miami submarket has greater rates, and you'll need to pay a premium to be in this hot region.
In the last 90 days, 3 listings have come on the market, which means leases most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 67% of the listings in the South Miami 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 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 2,030 sqft. Most buildings in this area are around 3 stories. Most buildings in this region were built in 1980 and are Class B.