The typical asking rate per listing is in the $30's per square foot per year. The Elizabeth submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $6 per sqft per year. That's a 25% increase in rent.
In the last 90 days, 10 listings have been posted online, which means listings are probably going fast. You'll want to be prepared to make an offer immediately. About 80% of the available space in the Elizabeth 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.
The standard measurement for office space in this area is around 1,120 sqft. Most buildings in this market are approximately 3 stories. Most buildings in this region were built in 1982 and are Class B.