Most listings are in the $30's per square foot per year. The Rockville submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $5 per sqft per year. That's a 18% increase in rent.
Compared to the rest of the Washington D.C. market, the Rockville region has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 33 listings have been made available, which means spaces are probably going fast. You'll want to be prepared to make an offer immediately. About 191% of the listings in the Rockville 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 3,750 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this area are close to 4 floors. Most buildings in this market were built in 1985 and are Class A.