Compared to the rest of the San Diego market, the Escondido submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 21 listings have been listed, which means new availabilities most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 5% of the available leases in the Escondido 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 posted, so finding a space for a small business might be tough.
Even though the median size is 4,189 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this region are close to 2 floors. Most buildings in this area were built in 1986 and are Class A.