On average, listings lease in the $10's per square foot per year. The Louisville region is seeing a decline in rates. In the last 3 months, the median rate fell $5 per sqft per year. That's a 20% decline in rent.
In the last 90 days, 13 listings have been made available, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 8% of the available space in the Louisville are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 2,610 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this region are close to 2 stories. Most buildings in this area were built in 1999 and are Class A.