The typical asking rate per listing is in the $10's per square foot per year. The Apple Valley region is going through a an increase in rates. In the last 3 months, the median rate rose $18 per sqft per year.
In the last 90 days, 10 listings have been posted online, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About 120% of the available leases in the Apple Valley 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.
Even though the median size is 4,000 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this market are around 1 stories. Most buildings in this area were built in 1989 and are Class A.