Compared to the rest of the Washington D.C. market, the Newington submarket has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 3 listings have been listed, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 167% of the office spaces in the Newington 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 posted, so finding a space for a small business might be tough.
Even though the median size is 28,120 sqft, there are still 0 leases below 2,000 sqft. Most properties in this market are close to 1 floors. Most buildings in this area were built in 1982 and are Class B.