Most listings are in the $10's per square foot per year. The Raytown region is going through a a boost in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 9% rise in rent.
In the last 90 days, 16 listings have been made available, which means new listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. 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 2,500 sqft. Most buildings in this market are around 2 stories. Most buildings in this area were built in 1978 and are Class B.