On average, listings lease in the $40's per square foot per year. The West Lake Hills region is going through a decrease in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 3% decrease in rent.
Compared to the rest of the Greater Austin market, the West Lake Hills region has higher rates, and you'll need to pay a premium to be in this hot region.
In the last 90 days, 3 listings have been posted online, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 2,250 sqft. Most properties in this area are close to 2 stories. Most buildings in this market were built in 1984 and are Class B.