For the purposes of this chapter, the Township of Westtown is hereby divided into nine base zoning districts, which are designated as follows:

Overlay districts.

Districts of annexed area. Any territory hereafter added to the Township shall be considered to be zoned R-1 Residence District until otherwise classified by action of the Township of Westtown.

Lot sizes. No lot shall be so reduced that the area of the lot or the dimensions of the required open space shall be less than herein prescribed.

The boundaries of all base zoning districts shall be as shown upon the map attached to and made a part of this chapter, which shall be designated the Westtown Township Zoning Map. Said Zoning Map and all notations, references, and other things shown thereon shall be made a part of this chapter, as if the matters and things shown by said map were all fully described herein.[1]

The area contained within the Steep Slope Conservation District shall be as designated in § 170-402C of this chapter.

The boundaries between districts are, unless otherwise indicated, either the center line of streets or railroad rights-of-way or such lines extended or parallel thereto.

Where figures are shown on the Zoning Map between a street and a district boundary line, they indicate that the district boundary line runs parallel to the street line at a distance therefrom equivalent to the number of feet so indicated.

Where the boundaries of a single district are indicated as including directly opposite sides of a street, lane, lake, or watercourse, or the right-of-way of a power line or other public utility or any portion of its length, the district so indicated shall be construed to apply to the entire bed of such street, lane, lake, watercourse, or right-of-way of such power line, railroad, or other public utility lying within such portion of its length.

Where a district boundary is indicated as approximately following a lot or other property line, such lot or property line shall be construed to be such boundary.