Most listings are in the $20's per square foot per year. The Camden submarket is going through a an increase in rates. In the last 3 months, the median rate rose $6 per sqft per year. That's a 26% rise in rent.
In the last 90 days, 10 listings have come on the market, which means office spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. About 70% of the listings in the Camden are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,140 sqft. Most buildings in this market are approximately 21 stories. Most buildings in this area were built in 1927 and are Class A.