The area of the city is divided into districts classified as set forth in this title. The districts established are as follows:

A.

The districts set forth in Section 17.08.010 and certain combinations thereof are established insofar as the designations, locations, and boundaries thereof are set forth and indicated on the zoning map.

B.

No land shall be used and no building or structure shall be erected, constructed, enlarged, altered, moved or used in any district as shown on the zoning map, except in accordance with this title.

Where uncertainty exists with respect to the boundaries of the various zoning districts as shown on the zoning district map, the following rules shall apply:

A.

The district boundaries are either streets or alleys, highway rights-of-way, railroad rights-of-way, waterways, lot lines, property lines, quarter section lines, half section lines, or full section lines, unless otherwise shown. Where the designation on the zoning district map indicates the various districts are approximately bounded by street or alley lines, the street or alley shall be construed to be the boundary of the district.

B.

Where the zoning district boundaries are not otherwise indicated and where the property is divided into blocks and lots, the district boundaries shall be lot lines. Where the designation on the zoning district map indicates that the various districts are approximately bounded by lot lines, the lot lines shall be the boundary of such district unless boundaries are otherwise indicated on the map.

C.

In unsubdivided property, the zoning district boundary line on the zoning district map may be determined by use of the scale contained on the map.

D.

Whenever any street, alley, highway, or other public right-of-way is officially vacated, the zoning district abutting each side of such street, alley, highway or public right-of-way shall extend to the center of such vacation and all area included in the vacation shall then be subject to all regulations of the extended districts.

A.

No building or structure shall be constructed, located, converted or altered nor shall any building or land be used except for the purpose permitted in the district in which the building or land is located, except as provided in this title. No building shall be erected, enlarged, or altered except in conformity with the area regulations and minimum yard requirements of those regulations for the district in which such building is located.

B.

Except as specified elsewhere in these regulations, no building or structure or group of related buildings or structures should be erected, reconstructed, or enlarged, and no use shall be established unless located on or comprising a lot or lots.

C.

No part of a yard or other open space required in connection with any building or structure for the purpose of complying with the provisions of these regulations shall be included as a part of a yard or other open space similarly required for another building or structure.