On average, listings lease in the $20's per square foot per year. The Santa Ana region is experiencing a an increase in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 8% rise in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Santa Ana submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 100 listings have been posted online, so you'll want to check back regularly for new listings. About 5% of the available space in the Santa Ana are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 2,820 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this market are close to 2 stories. Most buildings in this market were built in 1982 and are Class B.