Compared to the rest of the Metropolitan Los Angeles market, the Los Alamitos submarket has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 10 listings have come on the market, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 30% of the available space in the Los Alamitos 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 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 660 sqft. Most properties in this market are around 2 stories. Most buildings in this area were built in 1976 and are Class A.