Most listings are in the $10's per square foot per year. The Johnson County region is going through a a rise in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 4% rise in rent.
In the last 90 days, 12 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. About 117% of the listings in the Johnson County are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 1,240 sqft. Most buildings in this market are close to 1 stories. Most buildings in this area were built in 1980 and are Class B.