The typical asking rate per listing is in the $20's per square foot per year. The St. Louis County submarket is experiencing a decline in rates. In the last 3 months, the median rate decreased $0 per sqft per year. That's a 2% decrease in rent.
In the last 90 days, 411 listings have been listed, so you'll want to check back regularly for new listings. About 4% of the office spaces in the St. Louis 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 2,340 sqft. Most buildings in this market are around 2 stories. Most buildings in this area were built in 1983 and are Class B.