The typical asking rate per listing is in the $0's per square foot per year. The Manhattan Beach submarket is seeing a decrease in rates. In the last 3 months, the median rate fell $55 per sqft per year. That's a 100% decline in rent.
In the last 90 days, 13 listings have been listed, which means office spaces 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 sqft. Most properties in this market are close to 6 stories. Most buildings in this region were built in 1985 and are Class B.