Most listings are in the $20's per square foot per year. The Rancho Santa Margarita submarket is experiencing a a boost in rates. In the last 3 months, the median rate went up $21 per sqft per year.
Compared to the rest of the Metropolitan Los Angeles market, the Rancho Santa Margarita region has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 9 listings have been posted online, which means spaces might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 167% of the available space in the Rancho Santa Margarita 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 840 sqft. Most properties in this area are close to 2 floors. Most buildings in this region were built in 2000 and are Class A.