Compared to the rest of the Metropolitan Los Angeles market, the Covina region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 10 listings have been posted online, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 170% of the office spaces in the Covina 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.
Even though the median size is 2,600 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this region are close to 2 floors. Most buildings in this region were built in 1980 and are Class B.