The typical asking rate per listing is in the $20's per square foot per year. The Prairie Village submarket is going through a a boost in rates. In the last 3 months, the median rate went up $24 per sqft per year.
In the last 90 days, 20 listings have come on the market, which means listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 30% of the office spaces in the Prairie Village 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 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 1,270 sqft. Most properties in this area are approximately 2 stories. Most buildings in this area were built in 1972 and are Class B.