The boundaries of the districts designated and established in this title are as shown on that certain map entitled "Zoning Map of the city of Menlo Park," incorporated herein and made a part of this title by reference as if fully set forth in this chapter and which map is on file in the department of community development and to which reference is made for full particulars as to the location of the areas shown within such districts. The districts shown are declared to be subject to the regulations pertaining to such designated districts as such regulations are set forth in Chapters 16.08 through 16.62 and 16.66 through 16.78. No person shall use any land, building or structure, nor shall any building or structure be erected, constructed, enlarged, altered, moved or used in any district shown on such zoning map, except in accordance with the regulations established by this title.

Where the exact boundaries of a district cannot be readily or exactly ascertained by reference to the zoning map of the city, the boundary shall be deemed to be along the nearest street or lot line, as the case may be. If a district boundary line divides or splits a lot, the lot shall be deemed to be concluded within the district which is the more restrictive. The provisions of the section shall not apply to acreage.

Changes in the boundaries of districts shall be made by ordinance in the manner provided in Chapter 16.88, such ordinance describing the area to be changed either by lot or block number or by metes and bounds. After adoption of any ordinance changing any boundaries of any district, the zoning map shall be revised to show the changes made.

All lands now or hereafter included within the city having boundaries which are not designated on the aforementioned zoning map as being included in any district are and shall be designated as unclassified. In such unclassified areas any use not otherwise prohibited by law may be permitted, subject to the granting of a use permit therefor; provided, however, the use as proposed is compatible with the comprehensive plan of the city.