The typical asking rate per listing is in the $10's per square foot per year. The Claremont submarket is going through a a boost in rates. In the last 3 months, the median rate went up $15 per sqft per year.
In the last 90 days, 9 listings have come on the market, which means office 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 2,870 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this market are around 2 floors. Most buildings in this area were built in 1920 and are Class Class B.