Most listings are in the $30's per square foot per year. The Anthem submarket is going through a a boost in rates. In the last 3 months, the median rate increased $33 per sqft per year.
Compared to the rest of the Phoenix Metropolitan Area market, the Anthem submarket has greater rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 2 listings have come on the market, which means office spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 250% of the available leases in the Anthem 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 available, so finding a space for a small business might be tough.
Even though the median size is 4,450 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this market are approximately 1 stories. Most buildings in this area were built in 2008 and are Class A.