Most listings are in the $40's per square foot per year. The Vista submarket is seeing a an increase in rates. In the last 3 months, the median rate rose $15 per sqft per year. That's a 53% increase in rent.
Compared to the rest of the San Diego market, the Vista submarket has greater rates, and you'll need to make a great offer to be in this hot submarket.
In the last 90 days, 41 listings have been posted online, so you'll want to check back regularly for new listings. About 2% of the available leases in the Vista 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 900 sqft. Most properties in this market are around 2 floors. Most buildings in this area were built in 1999 and are Class B.