On average, listings lease in the $30's per square foot per year. The Chula Vista submarket is going through a an increase in rates. In the last 3 months, the median rate increased $32 per sqft per year.
Compared to the rest of the San Diego market, the Chula Vista region has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 47 listings have come on the market, so you'll want to check back regularly for new listings. About 43% of the listings in the Chula Vista are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,920 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this area were built in 1992 and are Class B.