On average, listings lease in the $10's per square foot per year. The Sun City region is seeing a decrease in rates. In the last 3 months, the median rate decreased $11 per sqft per year. That's a 40% decrease in rent.
Compared to the rest of the Phoenix Metropolitan Area market, the Sun City submarket has smaller rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 10 listings have been listed, which means listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 1,490 sqft. Most properties in this area are around 1 floors. Most buildings in this region were built in 1985 and are Class B.