The typical asking rate per listing is in the $30's per square foot per year. The Secaucus submarket is going through a an increase in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 4% increase in rent.
In the last 90 days, 20 listings have been posted online, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 5% of the available leases in the Secaucus are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 1,440 sqft. Most buildings in this region are close to 4 stories. Most buildings in this region were built in 1981 and are Class B.