Most listings are in the $10's per square foot per year. The Leesburg submarket is going through a an increase in rates. In the last 3 months, the median rate rose $20 per sqft per year.
In the last 90 days, 7 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. About 57% of the office spaces in the Leesburg 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 6,020 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this region are around 1 stories. Most buildings in this market were built in 1980 and are Class A.