The typical asking rate per listing is in the $10's per square foot per year. The Plum region is seeing a an increase in rates. In the last 3 months, the median rate went up $16 per sqft per year.
In the last 90 days, 5 listings have been posted online, which means new availabilities most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 220% of the available space in the Plum 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 2,500 sqft. Most properties in this region are close to 4 floors. Most buildings in this area were built in 1985 and are Class C.