The typical asking rate per listing is in the $20's per square foot per year. The Poway region is experiencing a decline in rates. In the last 3 months, the median rate fell $6 per sqft per year. That's a 18% decrease in rent.
Compared to the rest of the San Diego market, the Poway submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 26 listings have been listed, which means listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 8% of the available leases in the Poway are subleases, so you will probably need to sign a longer term lease with the landlord directly. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 4,130 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this market are close to 2 stories. Most buildings in this area were built in 1999 and are Class B.