Most listings are in the $30's per square foot per year. The Monrovia submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 13% rise in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Monrovia region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 5 listings have been posted online, which means 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 8,900 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this area are close to 2 stories. Most buildings in this market were built in 1982 and are Class B.