On average, listings lease in the $40's per square foot per year. The Miami-Dade County submarket is seeing a a boost in rates. In the last 3 months, the median rate rose $45 per sqft per year.
In the last 90 days, 362 listings have come on the market, so you'll want to check back regularly for new listings. About 166% of the listings in the Miami-Dade County are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,190 sqft. Most properties in this market are approximately 3 stories. Most buildings in this region were built in 1982 and are Class A.