The typical asking rate per listing is in the $30's per square foot per year. The Danville submarket is experiencing a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 2% decrease in rent.
Compared to the rest of the East Bay market, the Danville region has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 6 listings have been posted online, which means spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 580 sqft. Most buildings in this region are around 2 stories. Most buildings in this area were built in 1982 and are Class B.