Compared to the rest of the Metropolitan Los Angeles market, the San Marino submarket has higher rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 1 listings have been made available, which means leases most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 480 sqft. Most properties in this market are approximately 2 floors. Most buildings in this area were built in 1961 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Education is the dominant industry in this region. Most of the residents of San Marino work from home. Commuting under 5 minutes a day is the norm for those who opt to reside in this part of town.