Compared to the rest of the Metropolitan Los Angeles market, the Alhambra region has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 4 listings have been listed, which means new listings most likley are going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 990 sqft. Most buildings in this area are around 3 stories. Most buildings in this market were built in 1985 and are Class B.