Properties zoned RS-6, RS-7.5, RD 5.5-7, RM, RM-S, PDD, SF-RMP, UR-7, or UR-10, fall into the HRD overlay zone if they have any of the following characteristics:
(A) The slope of the property is in one of the following categories as shown on the General Plan Safety Element Figure S-3: Areas Susceptible to Landslides and/or the California Division of Mines and Geology Map, "Interpretation of the Relative Stability of Upland Slopes in the Upper Ross Valley and the Western Part of San Rafael Area Marin County, California," Rice, Salem J., Smith, Theodore C. and Strand, Rudolph G., 1976 and development of the lot requires movement of more than the corresponding amount of excavation and/or fill or replacement of earth with foundation materials:
(1) Zero to five percent slope: 200 cubic yards.
(2) Five to 15 percent slope: 200 cubic yards.
(3) Fifteen to 30 percent slope: 100 cubic yards.
(4) Thirty-one percent slope: 50 cubic yards.
(B) The property falls within a "Mostly Landslides" or "Multiple Landslides" landslide hazard zone as shown on Figure S-3: Areas Susceptible to Landslides and/or the California Division of Mines and Geology Map, "Interpretation of the Relative Stability of Upland Slopes in the Upper Ross Valley and the Western Part of San Rafael Area Marin County, California," Rice, Salem J., Smith, Theodore C. and Strand, Rudolph G., 1976;
(C) Access to the property is via a private or public undeveloped roadway; (an undeveloped roadway is an unpaved or paper road which must be improved.)
(Prior Code, § 17.38.020) (Ord. 352, passed - -1973; Am. Ord. 845, passed 2-5-2020; Am. Ord. 886, passed 1-24-2024)