(a) That conventional development will preserve natural and scenic features, historic sites and historic resources to a degree equal to or greater than development under the Open Space Overlay District would permit.

(4) Relief from the requirements of the Open Space Overlay District may be granted by the Board of Commissioners as a conditional use, provided that the applicant proves compliance with the standards and criteria set forth in Article XI, Process and Procedures, establishing the following: (3) The applicant shall establish that development, including site improvement, lot design and open space configuration, preserves natural features and environmentally sensitive areas in accordance with Chapter 101, Natural Features Conservation, preserves historic sites and in all other respects complies with Article V, General Standards, of Chapter 135, Subdivision and Land Development. (2) All properties within an LDR, MDR, or an I District used or intended to be developed residentially shall comply with the provisions of this article. (1) The Open Space Overlay District is defined and established to include and be an overlay upon all parcels five acres or larger within any LDR or MDR Zoning Districts and upon all parcels five acres or larger within any I District developed for an institutional residential use or a residential use, which includes continuing-care facility and long-term-care facility. (4) The Floodplain Overlay District is an overlay on any zoning district and applicable to all lots. (3) The Lower Merion Township Floodplain Overlay District Map and all notations, references and other data shown thereon are hereby incorporated by reference in this chapter as if all were fully described herein.

(2) The Lower Merion Township Floodplain Overlay District Map, the Flood Insurance Study and the Lower Merion Township Topographic Map are available to the public for inspection at the Building and Planning Department of the Township of Lower Merion. It is based on the Flood Insurance Study for the Township of Lower Merion, Montgomery County, Pennsylvania, as prepared by the Federal Emergency Management Agency (FEMA), dated March 2, 2016, or the most recent revision thereof, United States Department of Housing and Urban Development and the Lower Merion Township Topographic Map last revised October 1973.

(1) The Floodplain Overlay District is defined and established to include areas subject to the base flood, designated on the Lower Merion Township Floodplain Overlay District Map and prepared by the Township of Lower Merion.

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