On average, listings lease in the $20's per square foot per year. The Essex County submarket is going through a decrease in rates. In the last 3 months, the median rate fell $0 per sqft per year. That's a 2% decrease in rent.
In the last 90 days, 507 listings have been listed, so you'll want to check back regularly for new listings. About 3% of the available space in the Essex County are subleases, so you will probably have to consider a longer term lease. 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 1,510 sqft. Most properties in this market are close to 2 stories. Most buildings in this region were built in 1970 and are Class B.