Most listings are in the $10's per square foot per year. The Framingham region is going through a decline in rates. In the last 3 months, the median rate decreased $9 per sqft per year. That's a 37% decrease in rent.
Compared to the rest of the Greater Boston market, the Framingham region has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 31 listings have come on the market, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 23% of the listings in the Framingham 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.
The standard measurement for office space in this area is around 920 sqft. Most properties in this area are around 3 floors. Most buildings in this area were built in 1982 and are Class A.