Most listings are in the $30's per square foot per year. The Elizabeth region is going through a an increase in rates. In the last 3 months, the median rate went up $32 per sqft per year.
In the last 90 days, 10 listings have been posted online, which means new listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 20% of the listings in the Elizabeth are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 4,000 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are close to 3 floors. Most buildings in this market were built in 1982 and are Class B.