On average, listings lease in the $20's per square foot per year. The Lawrence region is going through a a boost in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 6% rise in rent.
In the last 90 days, 7 listings have come on the market, which means new availabilities most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 14% of the office spaces in the Lawrence 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 posted, so finding a space for a small business might be tough.
Even though the median size is 5,600 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this area are around 1 floors. Most buildings in this area were built in 1922 and are Class B.