Most listings are in the $20's per square foot per year. The Los Alamitos submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $29 per sqft per year.
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 undervalued submarket.
In the last 90 days, 10 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 30% of the available leases in the Los Alamitos are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, 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 region are around 2 floors. Most buildings in this market were built in 1973 and are Class A.