On average, listings lease in the $30's per square foot per year. The Miami-Dade County submarket is experiencing a decline in rates. In the last 3 months, the median rate decreased $7 per sqft per year. That's a 14% decline in rent.
In the last 90 days, 449 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the available space in the Miami-Dade County are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 2,110 sqft. Most properties in this region are approximately 3 floors. Most buildings in this region were built in 1982 and are Class A.