On average, listings lease in the $20's per square foot per year. The San Antonio region is seeing a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 3% increase in rent.
Compared to the rest of the San Antonio market, the San Antonio region has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 642 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the available space in the San Antonio are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 2,195 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this region were built in 1985 and are Class A.