Most listings are in the $20's per square foot per year. The Lakeway region is going through a an increase in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 3% increase in rent.
Compared to the rest of the Greater Austin market, the Lakeway region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 3 listings have been listed, which means spaces are probably going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 3,050 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this region are close to 2 floors. Most buildings in this region were built in 1999 and are Class A.