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SEC. 17.50.  PARCEL MAPS – GENERAL PROVISIONS.
 
   A.   Purpose. The following parcel map regulations are intended to assure compliance with the Subdivision Map Act, the Comprehensive Zoning Plan of the City of Los Angeles as set forth in Article 2 of this chapter, and the various elements of the City’s General Plan, to assure lots of acceptable design and of a size compatible with the size of existing lots in the immediate neighborhood; to preserve property values; to assure compliance with the Design Standards for Streets and Alleys as specified in Section 17.05 of this Code where street or alley dedication and/or improvement are required; and to prevent interference with the opening or extension of streets necessary for emergency vehicle access, proper traffic circulation and the future development of adjacent properties; and to provide that the dividing of land in the hillside areas be done in a manner which will assure that the separate parcels can be safely graded and developed as building sites. (Amended by Ord. No. 143,254, Eff. 5/14/72.)
 
   B.   Scope.
 
   1.   No land shall be separated in ownership or otherwise divided into two, three, or four parcels or condominiums, and no such divided parcel or condominium shall be separately maintained unless the division conforms to that shown on a parcel map which has been approved by the Advisory Agency and recorded in the office of the county recorder. (Amended by Ord. No. 147,224*, Eff. 6/27/75.)
 
   * The provisions of this ordinance shall become operative 90 days after the publication date of such ordinance.
 
   2.   No building permit shall be issued, and no building or structure shall be constructed, altered or maintained on any land which has been separated in ownership or otherwise divided into two, three or four parcels in violation of the provisions of this article, and until and unless a Parcel Map has been recorded in the office of the county recorder All conditions of approval shall be completed prior to filing the Parcel Map.
 
   3.   These regulations shall not apply to the leasing of apartments, offices, stores or similar space within an apartment building, industrial building, commercial building or mobilehome park, nor to mineral, oil or gas leases, nor shall they apply to the following divisions of land, except as may be required by Subsection C. hereof. (Amended by Ord. No. 161,716, Eff. 12/6/86.)
 
   (a)   Those made in compliance with the Subdivision Map Act and the subdivision regulations contained in this article.
 
   (b)   Those divisions of land made solely because of the sale, acquisition, lease or combining of lands by governmental agencies, including City of Los Angeles and any department thereof, or any further division of such lands by a lessee of such governmental agency.
 
   (c)   (Amended by Ord. No. 176,321, Eff. 1/15/05.)  Those where the Advisory Agency or the Appeal Board determines that all the following conditions exist:
 
   (1)   A lot line adjustment is made between four or fewer existing adjoining lots or parcels and the land taken from one lot or parcel is added to an adjoining lot or parcel;
 
   (2)   The resulting number of lots or parcels remains the same or is decreased;
 
   (3)   The parcels or lots resulting from the lot line adjustment will conform to the local general plan, any applicable coastal plan, and zoning and building ordinances.
 
   (d)   Those involving land dedicated for cemetery purposes under the applicable provisions contained in the Health and Safety Code of the State of California.
 
   C.   Parcel Maps – Divisions of Land of Five or More Parcels not Subdivisions.
 
   1.   (Amended by Ord. No. 146,985, Eff. 4/11/75.) No parcel of land shall be separated in ownership or otherwise divided into five or more parcels, where such a division is not a subdivision by reason of the exceptions contained in Subdivisions (a), (b), (c) and (d) of Section 66426 of the Subdivision Map Act, and no such divided parcel shall be separately maintained unless a Tentative Map of such division has been approved by the Advisory Agency and a Parcel Map prepared in conformity therewith and has been recorded in the office of the county recorder.
 
   2.   Where the Advisory Agency determines that a Tentative Map filed for the division of land described in Subdivision (b) and (c) of Section 66426 of the Subdivision Map Act complies with all the requirements of this article, but that dedication for street opening or widening or easements is necessary, it shall require that an offer to dedicate such additional land as is necessary therefor to be made in a manner provided by Section 17.53 C.1. of this Code. (Amended by Ord. No. 146,985, Eff. 4/11/75.)
 
   3.   Where the Advisory Agency determines that a Tentative Map filed for the division of land described in Subdivision (c) of Section 66426 of the Subdivision Map Act complies with all of the requirements of this Article, but that improvement of public or private streets, highways, ways or easements is necessary for local traffic, drainage or sanitary needs, such improvements shall be constructed, or their construction and completion guaranteed in the manner provided by Section 17.08 of this Code, as a condition of approval of the Tentative Map. (Amended by Ord. No. 146,985, Eff. 4/11/75.)
 
   4.   No building permit shall be issued, and no building or structure shall be constructed, altered or maintained on any land which has been separated in ownership or otherwise divided into five or more parcels, where a final map is not required for such a division by reason of the exceptions contained in Subdivision (a), (b), (c) and (d) of Section 66426 of the Subdivision Map Act, in violation of the provisions of this article. All conditions of approval shall be completed prior to submitting the parcel map to the City Engineer. (Amended by Ord. No. 146,985, Eff. 4/11/75.)
 
   D.   Waiver of Parcel Maps. (Amended by Ord. No. 159,630, Eff. 2/25/85.)
 
   1.   Findings. The Advisory Agency may waive Parcel Maps required by this section so long as it finds that the proposed division of land complies with such requirements as may have been established by the Subdivision Map Act (Government Code Sections 66410 et seq. ) or this article as to area, improvement and design, floodwater drainage control, appropriate improved public roads, sanitary disposal facilities, water supply availability, environmental protection, and other requirements of the Subdivision Map Act or this article, provided that in waiving such a Parcel Map the Advisory Agency may receive a preliminary Parcel Map.
 
   2.   Procedure. A request for a waiver of a Parcel Map shall be submitted by the subdivider in a form acceptable to the Advisory Agency. Notice of the action of the Advisory Agency upon such a request shall be given to the subdivider and to all persons to whom notification of the preliminary Parcel Map is required by law. The Advisory Agency action on a request for a waiver of a Parcel Map may be appealed in accordance with the provisions of Section 17.54 of this Code. Provided that in overruling an Advisory Agency denial of such a request for a waiver of a Parcel Map, the Appeal Board shall make the findings required by Subdivision 1. of this subsection. (Amended by Ord. No. 173,268, Eff. 7/1/00, Oper. 7/1/00.)
 
   E.   Slope Density. (Added by Ord. No. 162,144, Eff. 5/11/87.)  In Hillside Areas, as defined in Chapter 1 of the Los Angeles Municipal Code, which are designated in the Minimum Density housing category by the applicable element of the General Plan adopted by the City Council, the dwelling unit density shall not exceed that allowed by the following formula:  (Paragraph and following formula Amended by Ord. No. 179,035, Eff. 9/17/07.)
 
 
   Where:      D =   the maximum number of dwelling units per gross acre allowable, and
         S =   the average natural slope of the land in percent.
 
   Where the total allowable number of dwelling units per parcel map or tentative tract map calculated under the above formulas results in a number other than a whole number, it shall be rounded to the nearest whole number as follows: where the fractional portion of the total allowable number of dwelling units equals .5 or more, the total number of allowable dwelling units shall be rounded to the next larger whole number; where the fractional portion of the total allowable number of dwelling units equals less than .5, the total number of allowable dwelling units shall be rounded to the next smaller whole number
 
   In no case shall the permitted density be less than 0.05 dwelling units per gross acre.  Where the total allowable number of dwelling units per parcel map calculated under the above formula results in a number less than one, it shall be rounded up to allow one dwelling unit per parcel map.  Where previous grading on a site makes it difficult to determine average natural slope using the above formula, the Director of Planning shall determine the average natural slope in a manner to carry out the purpose and intent of this subsection.  (Amended by Ord. No. 179,035, Eff. 9/17/07.)
 
   F.   Public Notice and Hearing. (Added by Ord. No. 176,321, Eff. 1/15/05.)  Upon receipt of a complete application, the Advisory Agency shall set the matter for public hearing at which evidence shall be taken.  The Advisory Agency shall give notice consistent with the provisions of Section 17.06 A.1. of the L.A.M.C.
 
   Waiver.  The Advisory Agency may waive the public hearing required in this subsection if the applicant submits with the application the written approval of the owners of all properties abutting, across the street or alley from, and/or having a common corner with the parcel map.  A copy of the determination shall be mailed to the applicant, and to the owners of all properties abutting, across the street or alley from, or having a common corner with the subject property and/or to all persons who have filed written requests for notice with the Advisory Agency.