On average, listings lease in the $40's per square foot per year. The La Cañada Flintridge submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $6 per sqft per year. That's a 17% increase in rent.
Compared to the rest of the Metropolitan Los Angeles market, the La Cañada Flintridge submarket has more expensive rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 1 listings have been posted online, which means 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,000 sqft. Most properties in this area are approximately 2 stories. Most buildings in this region were built in 1994 and are Class B.