On average, listings lease in the $20's per square foot per year. The Marblehead submarket is going through a an increase in rates. In the last 3 months, the median rate went up $24 per sqft per year.
Compared to the rest of the Greater Boston market, the Marblehead submarket has higher rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 14 listings have been posted online, which means new availabilities are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 7% of the available leases in the Marblehead are subleases, so you will probably have to focus your search on direct office leases. 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 730 sqft. Most buildings in this region are around 3 floors. Most buildings in this market were built in 1790 and are Class A.