Compared to the rest of the Metropolitan Los Angeles market, the Whittier submarket has lower rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 14 listings have been posted online, which means spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 14% of the available space in the Whittier are subleases, so you might be able to find a shorter term or below market rent. 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 940 sqft. Most buildings in this market are close to 2 stories. Most buildings in this market were built in 1974 and are Class B.