The typical asking rate per listing is in the $30's per square foot per year. The San Marino region is seeing a a boost in rates. In the last 3 months, the median rate increased $40 per sqft per year.
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, 2 listings have come on the market, which means office spaces are probably going fast. 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 buildings in this region are close to 2 stories. 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 area. Most of the folk 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.