The typical asking rate per listing is in the $20's per square foot per year. The Covina submarket is going through a decline in rates. In the last 3 months, the median rate decreased $14 per sqft per year. That's a 38% decrease in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Covina region has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 10 listings have been made available, which means new availabilities most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 210% of the office spaces in the Covina are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 2,600 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this market are approximately 2 stories. Most buildings in this market were built in 1980 and are Class B.