Compared to the rest of the Metropolitan Los Angeles market, the Covina submarket has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 16 listings have come on the market, which means listings are probably leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,280 sqft. Most properties in this market are around 2 floors. Most buildings in this area were built in 1981 and are Class B.