On average, listings lease in the $10's per square foot per year. The Conroe region is going through a decline in rates. In the last 3 months, the median rate fell $7 per sqft per year. That's a 25% decrease in rent.
Compared to the rest of the Houston Metro market, the Conroe submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 29 listings have come on the market, which means listings 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 available, so finding a space for a small business might be tough.
Even though the median size is 3,100 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this area are around 2 floors. Most buildings in this region were built in 1996 and are Class C.