Compared to the rest of the DFW Metroplex market, the Colleyville region has higher rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 8 listings have come on the market, which means new listings 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 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 1,480 sqft. Most properties in this region are around 1 floors. Most buildings in this region were built in 2006 and are Class B.