Compared to the rest of the East Bay market, the Newark region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 17 listings have been made available, which means listings are probably going fast. You'll want to be prepared to make an offer immediately. 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 1,350 sqft. Most buildings in this area are around 1 floors. Most buildings in this market were built in 1996 and are Class A.