Compared to the rest of the DFW Metroplex market, the Flower Mound submarket has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 9 listings have been made available, which means new availabilities most likley are going fast. 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.
The standard measurement for office space in this area is around 1,330 sqft. Most buildings in this market are close to 1 floors. Most buildings in this area were built in 2001 and are Class B.