Where such boundaries are indicated as following streets and alleys, the center lines of such streets and alleys shall be construed to be such boundaries.

Where such boundaries are indicated as approximately following lot lines, such lot lines shall be construed to be such boundaries.

In unsubdivided property, or where a district boundary divides a lot, the location of any such boundary, unless the same is indicated by dimensions shown upon the zoning map(s), shall be determined by the use of the scale appearing on the zoning map(s).

In case further uncertainty exists, the planning commission, upon written application, or upon its own motion, shall determine the exact location of such boundaries.

There is established the city of Lakeport zoning map(s) which identifies all zoning districts.

Said map(s), and all locations thereon, are made a part of this title by reference thereto to be of such force and effect as if fully set forth herein.

No building or structure shall be erected, and no existing building or structure shall be moved, altered, added to, or enlarged, nor shall any land, building or structure, or premises be used, designed, or intended to be used for any purpose, or in any manner, other than those included among the uses hereinafter listed as permitted in the district in which such building or structure, land, or premises is located.

No building or structure shall be erected, reconstructed, or structurally altered to exceed in height the limit hereinafter designated for the district in which such building or structure is located.

No building or structure shall be erected, nor shall any existing building or structure be altered, enlarged, or rebuilt, except in conformity to the lot area, yard, coverage, and building or structure location regulations hereinafter set forth for the district in which such building or structure is located.

No yard or other space provided around any building for the purpose of complying with the provisions of this title shall be considered as providing a yard or open space for any other building, and no yard or other open space on one lot shall be considered as providing a yard or open space for a building on any other lot.

No parking area or garage space provided on a lot for the purposes of complying with provisions of this title shall be reduced in area or capacity or be considered as providing parking area or garage space, or yard, court, or other open space required for any building or use on any other lot except as hereinafter provided.

No lot shall be divided, subdivided, or otherwise altered to result in an area less than the minimum lot size specified by this title for the district in which such lot is situated. Any alteration of property made in violation of this provision, or in violation of the provisions of the Lakeport subdivision ordinance or the California Subdivision Map Act, shall not be recognized for the purpose of determining lots or parcels in the application of this title.