On average, listings lease in the $20's per square foot per year. The Glendora submarket is experiencing a decline in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 9% decrease in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Glendora region has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 7 listings have been made available, which means new listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 86% of the available leases in the Glendora are subleases, so you might be able to find a shorter term or below market rent. 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 1,500 sqft. Most buildings in this area are close to 2 stories. Most buildings in this region were built in 1985 and are Class B.