Most listings are in the $20's per square foot per year. The Four Corners submarket is going through a an increase in rates. In the last 3 months, the median rate went up $29 per sqft per year.
In the last 90 days, 4 listings have been listed, which means listings most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 150% of the office spaces in the Four Corners 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,780 sqft. Most properties in this market are close to 2 floors. Most buildings in this area were built in 2001 and are Class B.