On average, listings lease in the $30's per square foot per year. The Bernardsville submarket is seeing a a rise in rates. In the last 3 months, the median rate rose $32 per sqft per year.
In the last 90 days, 4 listings have been listed, which means new availabilities might be going fast. You'll want to be prepared to make an offer immediately. 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 1,800 sqft. Most buildings in this region are around 2 floors. Most buildings in this area were built in 1910 and are Class A.