New business park will be one of the largest in Denton Pennsylvania-based Exter Property has already built one warehouse near I-35. Exeter Property Group has already built and leased one warehouse in Denton.(Exeter Property Group ) Denton’s growth as a North Texas shipping and warehousing hub is gaining speed. Several developers have recently announced plans for new industrial projects in the Interstate 35 corridor north of Dallas. Now a Pennsylvania-based builder has filed plans for the largest Denton business park yet. Exeter Property Group plans to build the almost 1.5 million-square-foot warehouse project in the Exeter Westpark business park west of I-35.