Most listings are in the $20's per square foot per year. The Kirkwood region is going through a decline in rates. In the last 3 months, the median rate decreased $7 per sqft per year. That's a 20% decrease in rent.
In the last 90 days, 10 listings have been listed, which means leases are probably going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,480 sqft. Most buildings in this area are close to 3 stories. Most buildings in this region were built in 1997 and are Class A.