Battle lines have again been drawn in the debate over developing northern South Park. The Gill family is on one side, looking to clear a regulatory hurdle aimed at paving the way for developing a 26-acre, 84-lot subdivision just south of High School Road. They argued in public emails to the Teton County Board of County Commissioners that they have a âdecades old legal rightâ to develop there. Thatâs in part because they plan to move ahead using the âsuburbanâ zoning the parcel has held for decades. They also questioned the legality of denying or delaying approval of their sketch plan â a conceptual regulatory approval that precedes concrete development and subdivision plans â until a neighborhood plan for the area is complete.