On average, listings lease in the $30's per square foot per year. The Eatontown region is going through a an increase in rates. In the last 3 months, the median rate rose $32 per sqft per year.
In the last 90 days, 17 listings have been posted online, which means office spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 35% of the listings in the Eatontown 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.
Even though the median size is 11,200 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this area were built in 1988 and are Class B.