A. The design and development of subdivisions shall preserve, insofar as it is possible, the natural terrain, natural drainage, existing topsoil, and trees.

     B. Land subject to hazardous conditions such as landslides, mudflows, rock falls, snow avalanches, possible mine or ground subsidence, unstable slopes, seismic effects, expansive soils and rocks, shallow water table, open quarries, mineral resources, floodplains, debris fans, possible wildfires, radioactivity, and polluted or nonpotable water supply shall be identified and shall not be subdivided until: (1) the hazards have been eliminated or will be eliminated by subdivision and construction plans; and (2) a permit under Chapter 17.148, Areas and Activities of State and Local Interest, has been issued.

     C. Lots.

     1. No single lot shall be divided by a municipal or County boundary line.

     2. A lot shall not be divided by a road, alley or other lot.

     3. Wedge-Shaped Lots. In the case of wedge-shaped lots, no lot shall be less than zone provisions in which located.

     4. Lot Lines. Side lot lines shall be at substantially right angles or radial to street lines. Where lot lines are not at right angles to the street lines, this shall be indicated.

     5. Front on Public Street. No requirement.

     6. Double-Frontage Lots. Double frontage lots shall not be permitted.