Most listings are in the $20's per square foot per year. The Santa Clarita submarket is going through a a boost in rates. In the last 3 months, the median rate increased $29 per sqft per year.
Compared to the rest of the Metropolitan Los Angeles market, the Santa Clarita submarket has less expensive rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 62 listings have been listed, so you'll want to check back regularly for new listings. About 108% of the office spaces in the Santa Clarita 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,600 sqft. Most buildings in this region are close to 2 stories. Most buildings in this market were built in 2001 and are Class A.