The typical asking rate per listing is in the $10's per square foot per year. The Newark submarket is seeing a decline in rates. In the last 3 months, the median rate fell $40 per sqft per year. That's a 71% decrease in rent.
In the last 90 days, 33 listings have come on the market, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. 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 1,500 sqft. Most buildings in this region are around 1 floors. Most buildings in this area were built in 1983 and are Class C.