Most listings are in the $30's per square foot per year. The Bell region is seeing a decline in rates. In the last 3 months, the median rate decreased $5 per sqft per year. That's a 13% decline in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Bell region has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 1 listings have been listed, which means office spaces are probably going fast. You'll want to be prepared to make an offer immediately. 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 2,490 sqft. Most properties in this market are around 1 floors.