The boundaries of the zoning districts shall be shown as on the "Zoning Map of Caernarvon Township." The official copy of this Zoning Map shall be located in the Township building. The Zoning Map and all notations, references and data shown thereon are hereby incorporated by reference into this chapter.

The Official Zoning Map shall be so labeled and identified by the signature of the Chairman of the Township Board of Supervisors, attested by the Secretary of said Board, and bear the seal of the Township under the following words:

All amendments to the Zoning Map of the Township shall be indicated on the Official Copy of the Zoning Map. An entry indicating the change made and the date of any change shall be made and the entry shall include the signature of the Chairman and Secretary of the Board of Supervisors.

In the event that the Official Zoning Map becomes damaged, destroyed, lost or difficult to interpret by reason of the nature and number of changes and additions made thereon, the Board of Supervisors may, by resolution, adopt a new Official Zoning Map which shall supersede such prior map. The new Official Zoning Map may correct drafting or other errors or omissions in the prior Official Zoning Map, but no such correction shall have the effect of amending the original Official Zoning Map or any subsequent amendment thereof. The new Official Zoning Map shall be identified by the signature of the Chairman of the Board of Supervisors, attested by the Secretary of said Board, and bear the seal of the Township under the following words:

Where district boundaries are indicated as approximately coinciding with the center lines of streets, highways or alleys, such center lines shall be construed to be such boundaries.

Where district boundaries are indicated as approximately coinciding with plotted lot lines, such lot lines shall be construed to be such boundaries.

Where district boundaries are indicated as being approximately parallel to the center lines or right-of-way lines of streets or highways, such district boundaries shall be construed as being parallel to the center lines or right-of-way lines and at such distance from the center lines or right-of-way lines as is indicated on the Official Zoning Map. Distances not specifically indicated on the Official Zoning Map shall be determined by the scale of the map.

Where district boundaries are indicated as being approximately perpendicular to the right-of-way lines of streets or highways, such district boundaries shall be construed as being perpendicular to the right-of-way lines.

Boundaries indicated as approximately following Township limits shall be construed as following such limits.

Boundaries indicated as approximately following railroad lines shall be construed to be midway between the main tracks.

Boundaries indicated as parallel to or extensions of features listed in Subsections A through F above shall be so construed.

Where physical or cultural features existing on the ground are at variance with those shown on the Official Zoning Map, or in other circumstances not covered by Subsections A through G above, the Zoning Officer shall interpret the district boundaries.

Where a district boundary line divides a lot which was in single ownership at the effective date of this chapter, the Township may permit the extension of the regulations for either portion of the lot 100 feet beyond the district line into the remaining portion of the lot or the expansion of an existing building by no more than 25%.

Except as hereafter provided in this chapter, no building, structure or land shall be used or occupied, and no building, structure or part thereof shall be erected, constructed, reconstructed, or structurally altered, except in conformity with all the regulations specified within this chapter for the district in which the building, structure, or land is located.

No building, structure, or land shall be used or occupied and no building, structure or part there of shall be erected, constructed, reconstructed, or structurally altered without the issuance of a building permit and/or certificate of use and occupancy by the Zoning Officer.

No part of a yard, other open space, or off-street parking or loading space required in connection with one structure, building, or use of the land shall be included as part of a yard, open space, or off-street parking or loading space similarly required of any other structure, building, or use of the land.

No yard or lot existing at the time of passage of this chapter shall be reduced in dimension or area below the minimum requirements set forth in this chapter.

All territory which may hereafter be annexed to the Township shall be considered to be an R-1 District until otherwise classified.

Subdivisions approved as Planned Residential Developments (Highcroft and Pennwood) shall continue to be subject to the use, area and bulk requirements applicable for Planned Residential Developments then in effect in Section 628 of the Zoning Ordinance (which has since been repealed). Section 628 of the Zoning Ordinance remains on file at the Township Office and is incorporated herein by reference. The area and bulk requirements are also identified on the approved, recorded subdivision plans for each subdivision. The zoning map shall be amended to include a footnote to this effect.