The Village of Port Jefferson is hereby divided into the classes of districts listed below:

Legislative intent. Port Jefferson is endowed with a significant maritime heritage and abundant natural resources, not the least of which is its deep water harbor. However, the Board of Trustees has found that the existing Zoning Ordinance controlling marine development is inadequate for properly developing and redeveloping waterfront lands in the Marina-Waterfront District. In some cases, incompatible land uses are allowed to exist side by side, causing friction between residents and business operations in the District. It is the intent of this chapter that water-dependent activities and water-enhanced activities are not preempted by non-water-related activities. It is further intended that development in this district encourage design features and views that best capture the relationship between waterfront and upland and that create opportunities for pedestrian access to and along the waterfront. Lands within the Marina-Waterfront District which have direct relationship to or impact upon the waterfront areas within the Village of Port Jefferson shall be developed to enhance the waterfront's recreational, historic, scenic, and cultural, residential and commercial qualities, and to preserve and enhance these qualities for the future.

Unless otherwise shown, the district boundaries shall be construed to coincide with the center lines of streets, highways, waterways or railroad rights-of-way or such lines extended.

Where such boundaries are indicated as approximately following the property lines of parks or other publicly owned lands, such lines shall be construed to be such boundaries.

In all cases where a district boundary divides a lot in one ownership and more than 50% of the area of such lot lies in the less restricted district, the regulations prescribed by this chapter for the less restricted district shall apply to such portion of the more restricted portion of said lot which lies within 30 feet of such district boundary. For purposes of this section, the more restricted district shall be deemed that district subject to regulations which prohibit the use intended to be made of said lot or require higher standards with respect to setback, coverage, yards, screening, landscaping and similar requirements.

In all cases where a district boundary line is located not farther than 15 feet away from a lot line of record, such boundary line shall be construed to coincide with such lot line.

In all cases where a lot abuts Long Island Sound or Port Jefferson Harbor, the zoning district boundary line shall be deemed to coincide with the high-water line.

In all other cases where dimensions are not shown on the Map, the location of boundaries shown on the Map shall be determined by the use of the scale appearing thereon.