Most listings are in the $30's per square foot per year. The Clayton region is experiencing a decline in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 6% decrease in rent.
In the last 90 days, 37 listings have been made available, which means listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 3% of the available space in the Clayton 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.
Even though the median size is 4,010 sqft, there are still 0 leases below 2,000 sqft. Most properties in this area are around 14 stories. Most buildings in this market were built in 1968 and are Class A.