The typical asking rate per listing is in the $30's per square foot per year. The South Pasadena submarket is going through a an increase in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 7% increase in rent.
Compared to the rest of the Metropolitan Los Angeles market, the South Pasadena submarket has higher rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 5 listings have been made available, which means listings are probably leasing quickly. 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 1,500 sqft. Most buildings in this region are close to 2 floors. Most buildings in this region were built in 1950 and are Class B.