Most listings are in the $10's per square foot per year. The Richmond submarket is experiencing a decline in rates. In the last 3 months, the median rate decreased $7 per sqft per year. That's a 29% decrease in rent.
Compared to the rest of the East Bay market, the Richmond region has smaller rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 14 listings have been made available, which means office spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 14% of the office spaces in the Richmond 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 5,710 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this market are around 1 stories. Most buildings in this area were built in 1978 and are Class A.