In the last 90 days, 3 listings have come on the market, which means spaces might be going fast. You'll want to be prepared to make an offer immediately. About 33% of the listings in the Washington are subleases, so you might be able to snag a great spot on a short term. 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 900 sqft. Most properties in this region are around 2 stories. Most buildings in this region were built in 1900 and are Class C.