Compared to the rest of the Metropolitan Los Angeles market, the Santa Ana region has smaller rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 146 listings have been posted online, so you'll want to check back regularly for new listings. About 50% of the available space in the Santa Ana 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 2,030 sqft. Most properties in this region are approximately 2 floors. Most buildings in this area were built in 1981 and are Class B.