On average, listings lease in the $20's per square foot per year. The Williamson County region is going through a an increase in rates. In the last 3 months, the median rate increased $24 per sqft per year.
Compared to the rest of the Greater Austin market, the Williamson County submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 29 listings have been made available, which means listings might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 69% of the available leases in the Williamson County 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 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 1,760 sqft. Most buildings in this area are around 2 stories. Most buildings in this market were built in 2000 and are Class B.