Most listings are in the $10's per square foot per year. The Lexington submarket is experiencing a decrease in rates. In the last 3 months, the median rate decreased $172 per sqft per year. That's a 90% decrease in rent.
In the last 90 days, 3 listings have been posted online, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,210 sqft.