On average, listings lease in the $20's per square foot per year. The Kensington submarket is experiencing a decline in rates. In the last 3 months, the median rate fell $3 per sqft per year. That's a 10% decrease in rent.
Compared to the rest of the Washington D.C. market, the Kensington submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 5 listings have come on the market, which means office spaces might be going fast. You'll want to be prepared to tour spaces as quick as possible. 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 2,000 sqft. Most properties in this area are approximately 2 stories. Most buildings in this region were built in 1963 and are Class B.