Properties zoned RS-6, RS-7.5, RD 5.5-7, RM or SF-RMP 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 Exhibit A of the Open Space Element, General Plan Maps, 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 landslide hazard zone as shown on Exhibit 3, Open Space Element of the Fairfax General Plan;
(C) Access to the property is via a private or public undeveloped roadway; and (An undeveloped roadway is an unpaved or paper road which must be improved.)
(D) The property does not meet the minimum building site requirements defined in Chapters 17.076 through 17.088 of this code.
