Most listings are in the $0's per square foot per year. The Somerville submarket is experiencing a decrease in rates. In the last 3 months, the median rate decreased $33 per sqft per year. That's a 100% decline in rent.
In the last 90 days, 3 listings have been made available, which means new listings most likley are 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 1,180 sqft. Most buildings in this area are around 4 stories. Most buildings in this area were built in 1989 and are Class B.