On average, listings lease in the $30's per square foot per year. The Laguna Niguel submarket is seeing a decline in rates. In the last 3 months, the median rate fell $5 per sqft per year. That's a 14% decline in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Laguna Niguel region has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 12 listings have been posted online, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. 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 1,090 sqft. Most buildings in this region are close to 2 floors. Most buildings in this market were built in 1982 and are Class B.