The typical asking rate per listing is in the $30's per square foot per year. The Gainesville region is going through a a rise in rates. In the last 3 months, the median rate went up $0 per sqft per year. That's a 1% increase in rent.
Compared to the rest of the Washington D.C. market, the Gainesville submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 2 listings have been posted online, which means leases are probably 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 1,360 sqft. Most buildings in this area are approximately 1 floors. Most buildings in this market were built in 2001 and are Class B.