On average, listings lease in the $10's per square foot per year. The North End East region is going through a an increase in rates. In the last 3 months, the median rate went up $16 per sqft per year. That's a Inf% increase in rent.
In the last 90 days, 1 listings have been listed, which means new listings most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 100% of the available leases in the North End East 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 1,230 sqft. Most buildings in this market were built in 2007 and are Class A.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Education is the dominant industry in this region. Most of the folk of North End East work from home. Commuting around 15 minutes a day is the norm for those who opt to reside in this part of town.