Most listings are in the $10's per square foot per year. The Blue Springs submarket is going through a a boost in rates. In the last 3 months, the median rate increased $16 per sqft per year.
In the last 90 days, 39 listings have been listed, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 18% of the office spaces in the Blue Springs are subleases, so you might be able to find a shorter term or below market rent. 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 1,970 sqft. Most properties in this area are approximately 1 stories. Most buildings in this area were built in 1984 and are Class B.