Most listings are in the $30's per square foot per year. The Temecula region is seeing a an increase in rates. In the last 3 months, the median rate increased $33 per sqft per year.
Compared to the rest of the Metropolitan Los Angeles market, the Temecula region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 47 listings have been listed, so you'll want to check back regularly for new listings. About 55% of the available space in the Temecula 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,190 sqft. Most properties in this area are approximately 2 stories. Most buildings in this region were built in 1991 and are Class B.