Most listings are in the $20's per square foot per year. The Somerville submarket is seeing a a rise in rates. In the last 3 months, the median rate rose $26 per sqft per year.
Compared to the rest of the Greater Boston market, the Somerville region has more expensive rates, and you'll need to make a great offer to be in this hot region.
In the last 90 days, 24 listings have come on the market, which means listings are probably leasing quickly. 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 2,400 sqft. Most properties in this market are approximately 4 stories. Most buildings in this area were built in 1989 and are Class B.