No subdivision or other development plat or plan with a slope between ten (10) and forty percent (40%) shall be approved without compliance with the provisions of this chapter. Every proposal to grade, fill, or excavate land, and every proposal to erect a structure for human habitation, garage or accessory building shall be subject to this chapter, including proposals related to land in subdivisions. (Ord. 2013-04, 4-18-2013, eff. 4-19-2013)