Most listings are in the $10's per square foot per year. The Medford region is going through a a boost in rates. In the last 3 months, the median rate rose $16 per sqft per year.
Compared to the rest of the Greater Boston market, the Medford region has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 6 listings have been made available, which means spaces 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 posted, so finding a space for a small business might be tough.
Even though the median size is 7,020 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this market are around 5 stories. Most buildings in this area were built in 1990 and are Class A.