In the last 90 days, 0 listings have been listed, which means leases most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About NaN% of the listings in the Wolf Trap are subleases, so you will probably need to sign a longer term lease with the landlord directly. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around sqft. Most buildings in this region are around 11 stories. Most buildings in this market were built in 1984 and are Class A.