On average, listings lease in the $20's per square foot per year. The Poway region is seeing a decline in rates. In the last 3 months, the median rate decreased $1 per sqft per year. That's a 3% decrease in rent.
Compared to the rest of the San Diego market, the Poway region has smaller rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 25 listings have been posted online, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 12% of the listings in the Poway 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 2,820 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this area are close to 2 stories. Most buildings in this area were built in 1999 and are Class B.