Most listings are in the $20's per square foot per year. The Riviera Beach submarket is experiencing a a rise in rates. In the last 3 months, the median rate went up $21 per sqft per year.
Compared to the rest of the Gold Coast market, the Riviera Beach region has smaller rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 6 listings have been posted online, which means leases most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 133% of the available leases in the Riviera Beach 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,360 sqft. Most buildings in this region are approximately 2 stories. Most buildings in this market were built in 1988 and are Class B.