It’s also along the tollway’s future route. In November, an investor group purchased the 281-acre Platinum Ranch southwest of Gunter. Gunter, in the southwest corner of Grayson County, is seeing an increase in residential land sales as builders and developers construct thousands of houses to the south in Celina. The ranch is near the future extension of the Dallas North Tollway. In August, Centurion American bought Taylor Ranch, a 500-acre property west of Preston Road, for a master-planned community.