Most listings are in the $20's per square foot per year. The Guadalupe County region is seeing a an increase in rates. In the last 3 months, the median rate increased $25 per sqft per year.
Compared to the rest of the Greater Austin market, the Guadalupe County submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 3 listings have been posted online, which means leases are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 100% of the available leases in the Guadalupe 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 1,790 sqft. Most buildings in this area were built in 1998 and are Class B.