On average, listings lease in the $20's per square foot per year. The Lansdowne submarket is seeing a a boost in rates. In the last 3 months, the median rate rose $26 per sqft per year.
Compared to the rest of the Washington D.C. market, the Lansdowne submarket has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 1 listings have been listed, which means leases might be leasing quickly. You'll want to be prepared to make an offer immediately. About 100% of the available leases in the Lansdowne 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 1,990 sqft. Most buildings in this market were built in 2007 and are Class A.