Most listings are in the $10's per square foot per year. The Fairfax submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $18 per sqft per year.
In the last 90 days, 2 listings have been made available, which means listings are probably going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 4,190 sqft, there are still 0 leases below 2,000 sqft. Most properties in this area are approximately 1 stories. Most buildings in this area were built in 2008 and are Class B.