On average, listings lease in the $20's per square foot per year. The Urbana region is experiencing a decline in rates. In the last 3 months, the median rate decreased $17 per sqft per year. That's a 44% decrease in rent.
Compared to the rest of the Washington D.C. market, the Urbana region has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 2 listings have been made available, which means office spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,780 sqft.