Most listings are in the $30's per square foot per year. The North Miami submarket is going through a a rise in rates. In the last 3 months, the median rate rose $36 per sqft per year.
Compared to the rest of the Gold Coast market, the North Miami submarket has more expensive rates, and you'll need to make a great offer to be in this hot region.
In the last 90 days, 1 listings have been listed, which means spaces are probably going fast. You'll want to be prepared to make an offer immediately. About 700% of the listings in the North Miami 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 1,690 sqft. Most buildings in this market are approximately 3 stories. Most buildings in this region were built in 1970 and are Class B.