17.06.030 Boundaries adopted—Rules of construction when boundaries uncertain.
A. The boundaries of such zones as are shown upon the zoning map, or amendments thereto, are adopted and the specific regulations as set forth in this title for each zone and the general regulations applicable in this title are established and declared to be in effect upon all lands included within the boundaries of each and every zone as shown upon said zoning map.
B. Where uncertainty exists as to the boundaries of any zone shown on the map, the following rules shall apply:
1. Where such boundaries are indicated as approximately following street and alley lines or lot lines, as the case may be, such lines shall be construed to be such boundaries;
2. In unsubdivided property or where a zone boundary divides a lot, the location of such boundary, unless the same is indicated by dimensions, shall be determined by use of the scale appearing on the map;
3. Where these rules are inapplicable, the planning commission shall determine the location of boundaries;
4. Where any public street or alley is officially vacated or abandoned, the regulations applicable to abutting property shall apply equally to such vacated or abandoned street or alley;
5. Where any private right-of-way or easement of any railroad, railway, canal, transportation or public utility company is vacated or abandoned, the regulations applicable to abutting property shall apply equally to such vacated or abandoned property;
6. All property in the city not otherwise classified and all property hereafter annexed and not zoned upon annexation, is classified as an R-1 zone. (Prior code § 17.12.030)