Compared to the rest of the Metropolitan Los Angeles market, the Westlake Village region has greater rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 16 listings have been listed, which means new listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 25% of the available leases in the Westlake Village are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 10,120 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this area are approximately 3 stories. Most buildings in this market were built in 1989 and are Class A.