Most listings are in the $30's per square foot per year. The Monrovia submarket is going through a decrease in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 4% decline in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Monrovia submarket has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 5 listings have been made available, which means leases might be leasing quickly. You'll want to be prepared to make an offer immediately. About 60% of the listings in the Monrovia are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 1,120 sqft. Most properties in this market are close to 2 floors. Most buildings in this market were built in 1982 and are Class B.