The following design standards shall govern the approval of any residential subdivision map:
A. Lot frontage. A lot shall front upon the street which parallels the long dimension of the block, except that a lot shall not front on a primary or secondary arterial street. A key lot shall not be permitted unless it is established that it cannot be avoided. A double frontage lot shall not be permitted, unless the Commission in the exercise of its discretion, subject to the subsequent approval of the City Council, approves the same after it has been established that a double frontage lot cannot be avoided if the dimensions set forth in this Section are to be secured for a majority of other lots in the same subdivision. Vehicular access may be limited to one (1) frontage of a double frontage lot. The side lot lines of each rectangular lot, and each other lot (so far as possible) shall be at approximate right angles to the street on which the lot fronts.
B. Large lots. When parcels of land are subdivided into larger than building lots, such parcels shall be divided so as to allow for the opening and ultimate extension of adjacent local streets. When parcels are so divided, each lot indicated shall be of such size and shape as to permit any individual owner to resubdivide, giving each lot legal size, shape, and access, independent of the adjoining owners.
C. Conformity with zoning ordinance. Residential lot dimensions and area shall comply with the provisions of the Zoning Code, as set forth in Title 17 of this Code, for the zone or zones within which the subdivision is located.
D. Drainage - sewering. In all subdivisions the layout of streets, alleys, lots, and easements shall be such as to provide for sanitary sewers and storm drainage in a manner satisfactory to the City Engineer. When construction is considered necessary to care for such flow, such construction shall be guaranteed by a bond in a form satisfactory to the City Attorney and an amount satisfactory to the City Engineer. When, in the opinion of the City Engineer, after consultation with the Los Angeles County Flood Control District, off-site construction is considered necessary to care for such flow, the subdivider shall pay a portion of the cost for said construction in the amount and manner as outlined in Cal. Gov't Code § 66483.
E. Building setback lines. Front line setbacks greater than those required in the Zoning Code, as set forth in Title 17 of this Code, may be required whenever the Commission and Council determines that the public health, safety, convenience, and general welfare will be conserved or furthered by such requirements. Setbacks may also be required in lieu of street widenings. When required, such building lines shall be indicated on Final and Parcel Maps at the distance from the street lines as specified.
('65 Code, § 31-110) (Ord. No. CS-622 § 1 (part))