On average, listings lease in the $30's per square foot per year. The Gaithersburg region is going through a decline in rates. In the last 3 months, the median rate decreased $1 per sqft per year. That's a 2% decrease in rent.
Compared to the rest of the Washington D.C. market, the Gaithersburg region has greater rates, and you'll need to make a great offer to be in this hot region.
In the last 90 days, 31 listings have been listed, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About 6% of the available space in the Gaithersburg 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 available, so finding a space for a small business might be tough.
Even though the median size is 4,234 sqft, there are still 0 leases below 2,000 sqft. Most properties in this area are around 2 stories. Most buildings in this market were built in 1989 and are Class B.