The installation of all structures and associated driveways, gardens, terraces, walls, ponds, patios, and utilities shall minimize to the greatest extent practicable all blasting, chipping, cutting, filling, and mechanical recontouring of the natural terrain, and shall take advantage of the screening potential of existing vegetation and land features to screen any activity regulated herein. All land-disturbing activities, including but not limited to clearing, grading, excavation, building construction, construction of driveways and roads, cutting, and filling, shall be limited to the minimum land area necessary to accommodate the proposed use or activity, and shall in no case be greater than 5,000 square feet plus land necessary for driveway access, unless a larger area is required to accommodate a septic system, in which case that larger area shall be permitted to be disturbed.