The typical asking rate per listing is in the $10's per square foot per year. The Hawthorne region is experiencing a decline in rates. In the last 3 months, the median rate decreased $4 per sqft per year. That's a 17% decline in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Hawthorne region has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 5 listings have come on the market, which means new availabilities most likley are leasing quickly. 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 properties in this area are around 2 stories. Most buildings in this area were built in 1985 and are Class B.