Most listings are in the $20's per square foot per year. The Wakefield region is experiencing a a boost in rates. In the last 3 months, the median rate rose $21 per sqft per year.
Compared to the rest of the Greater Boston market, the Wakefield region has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 5 listings have been made available, which means leases are probably going fast. You'll want to be prepared to make an offer immediately. 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 1,830 sqft. Most buildings in this area are approximately 4 stories. Most buildings in this area were built in 1983 and are Class A.