Most listings are in the $20's per square foot per year. The River Edge region is seeing a an increase in rates. In the last 3 months, the median rate increased $24 per sqft per year.
In the last 90 days, 1 listings have been listed, which means new listings are probably leasing quickly. You'll want to be prepared to make an offer immediately. 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 2,000 sqft. Most buildings in this region are around 2 stories. Most buildings in this market were built in 1983 and are Class A.