On average, listings lease in the $20's per square foot per year. The Mehlville region is seeing a a boost in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 18% increase in rent.
In the last 90 days, 24 listings have come on the market, which means new listings might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 1,340 sqft. Most buildings in this area were built in 1983 and are Class C.