On average, listings lease in the $20's per square foot per year. The Indian River County region is going through a decline in rates. In the last 3 months, the median rate fell $3 per sqft per year. That's a 8% decline in rent.
In the last 90 days, 35 listings have come on the market, which means listings might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 3% of the available leases in the Indian River County are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 1,250 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this region were built in 1992 and are Class B.