Most listings are in the $20's per square foot per year. The Germantown submarket is experiencing a a rise in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 7% rise in rent.
Compared to the rest of the Washington D.C. market, the Germantown submarket has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 15 listings have been listed, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 7% of the available space in the Germantown are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 3,000 sqft, there are still 0 listings below 2,000 sqft. Most properties in this market are around 1 stories. Most buildings in this market were built in 2002 and are Class B.