Most listings are in the $50's per square foot per year. The Ross region is seeing a decline in rates. In the last 3 months, the median rate decreased $5 per sqft per year. That's a 8% decline in rent.
Compared to the rest of the Bay Area market, the Ross region has greater rates, and you'll need to make a great offer to be in this hot submarket.
In the last 90 days, 2 listings have been made available, which means spaces most likley are going fast. 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 1,560 sqft. Most buildings in this area were built in 1936 and are Class B.