Most listings are in the $20's per square foot per year. The Grapevine submarket is going through a a rise in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 5% rise in rent.
Compared to the rest of the DFW Metroplex market, the Grapevine submarket has more expensive rates, and you'll need to make a great offer to be in this hot region.
In the last 90 days, 13 listings have been posted online, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About 38% of the available leases in the Grapevine are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 2,800 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this region are approximately 1 stories. Most buildings in this market were built in 2005 and are Class B.