On average, listings lease in the $10's per square foot per year. The Hawthorne submarket is going through a decrease in rates. In the last 3 months, the median rate fell $4 per sqft per year. That's a 18% decrease in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Hawthorne submarket has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 7 listings have been listed, which means spaces 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,150 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this region were built in 1980 and are Class B.