The typical asking rate per listing is in the $30's per square foot per year. The Williamson County submarket is going through a a rise in rates. In the last 3 months, the median rate increased $4 per sqft per year. That's a 14% rise in rent.
Compared to the rest of the Greater Austin market, the Williamson County submarket has more expensive rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 29 listings have been listed, which means office spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 314% of the office spaces in the Williamson County 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.
The standard measurement for office space in this area is around 370 sqft. Most properties in this region are close to 2 floors. Most buildings in this area were built in 2000 and are Class A.