Most listings are in the $0's per square foot per year. The San Marino submarket is going through a decline in rates. In the last 3 months, the median rate fell $40 per sqft per year. That's a 100% decrease in rent.
In the last 90 days, 1 listings have been posted online, which means listings are probably 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around sqft. Most buildings in this area are close to 2 stories. Most buildings in this market were built in 1961 and are Class B.