Most listings are in the $0's per square foot per year. The Stoneham region is experiencing a decline in rates. In the last 3 months, the median rate decreased $20 per sqft per year. That's a 100% decline in rent.
In the last 90 days, 6 listings have been listed, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 33% of the office spaces in the Stoneham are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 660 sqft. Most properties in this region are around 4 stories. Most buildings in this area were built in 1984 and are Class A.