On average, listings lease in the $50's per square foot per year. The Arlington County submarket is going through a a boost in rates. In the last 3 months, the median rate increased $53 per sqft per year.
In the last 90 days, 68 listings have been made available, so you'll want to check back regularly for new listings. About 351% of the available leases in the Arlington County are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 6,960 sqft, there are still 0 spaces below 2,000 sqft. Most properties in this area are approximately 11 stories. Most buildings in this area were built in 1986 and are Class A.