On average, listings lease in the $20's per square foot per year. The River Edge submarket is seeing a an increase in rates. In the last 3 months, the median rate increased $25 per sqft per year.
In the last 90 days, 1 listings have been posted online, which means leases might be leasing quickly. You'll want to be prepared to make an offer immediately. About 300% of the available space in the River Edge 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 2,260 sqft. Most buildings in this area are close to 2 stories. Most buildings in this market were built in 1983 and are Class A.