Most listings are in the $10's per square foot per year. The Montgomery submarket is seeing a an increase in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 8% rise in rent.
In the last 90 days, 63 listings have been listed, so you'll want to check back regularly for new listings. 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 1,800 sqft. Most properties in this region are close to 1 stories. Most buildings in this area were built in 1981 and are Class B.