On average, listings lease in the $30's per square foot per year. The Rancho Santa Margarita submarket is going through a a boost in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 2% increase in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Rancho Santa Margarita submarket has greater rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 10 listings have been listed, which means new listings most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. 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 1,240 sqft. Most properties in this market are close to 2 floors. Most buildings in this area were built in 2002 and are Class A.