The typical asking rate per listing is in the $40's per square foot per year. The Newark region is seeing a decline in rates. In the last 3 months, the median rate fell $11 per sqft per year. That's a 22% decrease in rent.
Compared to the rest of the East Bay market, the Newark submarket has higher rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 24 listings have been listed, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. About 29% of the available leases in the Newark 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,350 sqft. Most properties in this region are close to 1 floors. Most buildings in this market were built in 1996 and are Class A.