On average, listings lease in the $20's per square foot per year. The Red Bank region is going through a an increase in rates. In the last 3 months, the median rate increased $29 per sqft per year.
In the last 90 days, 20 listings have been listed, which means spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 30% of the listings in the Red Bank are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 1,750 sqft. Most buildings in this region are approximately 3 floors. Most buildings in this region were built in 1983 and are Class A.