Compared to the rest of the East Bay market, the Concord submarket has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 34 listings have been made available, which means office spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 82% of the available space in the Concord are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,390 sqft. Most properties in this region are close to 2 floors. Most buildings in this area were built in 1982 and are Class A.