Compared to the rest of the Greater Austin market, the Castle Hills submarket has less expensive rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 19 listings have come on the market, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. About 68% of the available leases in the Castle Hills 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 posted, so finding a space for a small business might be tough.
Even though the median size is 3,500 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this market are close to 4 stories. Most buildings in this market were built in 1982 and are Class B.