Very-Low-Density Residential District (R5A): to promote the less dense development pattern and protect environmentally sensitive areas by allowing for single-family residential use at a very low density and limited commercial uses, and other uses such as agriculture, forestry, parks, playgrounds and limited public uses on larger lots and in a manner consistent with the environmental constraints connected to the steep topography found in that portion of the Village.

Single-Family Residential District (R10,000): to promote single-family residential uses on smaller lots and to promote the existing community character and streetscapes found in these locations.

Single-and Multifamily Residential District (R3,500): to promote a mix of residential uses (single, semidetached, row, multifamily) and limited nonresidential uses, existing community character and streetscape at the highest density in the Village and in a manner that reflects the uses and traditional design found in these areas.

General Business District (GB): to promote a diversity of small business development, service businesses, and office uses in the center of the Village.

Land Conservation Overlay District (LC): to protect sensitive environmental features including floodplains, wetlands, and steep slopes.

Planned Development District (PD): a zoning designation to allow for the establishment of land uses in which diverse uses may be brought together in a unified plan of development on one or more contiguous large parcels of land and designed in a manner that ensures compatibility among all the land uses within and adjacent to the development, and to foster innovations in site planning that enhances Village character, and encourages sound design practices.

Senior Citizens Housing District (SC): This district is not currently mapped but is a zoning designation to allow for the establishment of a housing development oriented solely to meet the needs of senior citizens or handicapped persons through the PD district procedures of Article X of this chapter and designed in a manner that ensures compatibility with adjacent land uses, fosters innovation in site planning to enhance Village character, and encourages sound design practices.

Historic Overlay District (HD): to protect and enhance the landmarks and historic districts which represent distinctive elements of the Village of Nassau's historic, architectural and cultural heritage, to foster civic pride in the accomplishments of the past, to protect and enhance the Village of Nassau's attractiveness to visitors and the support and stimulus to the economy thereby provided, and to ensure the harmonious, orderly and efficient growth and development of the Village. This district is established through Chapter 73 of the Village of Nassau Code.

Zoning Map. Where a district boundary line, as appearing on the Zoning Map, divides a lot or land in a single ownership as existing at the time of this enactment, the use authorized on and the district requirements applying to the less-restricted portion of the property shall be construed as extending into the remaining portion of the property beyond the district boundary lines for a distance not exceeding 35 feet. Otherwise, unless shown to the contrary on the Zoning Map, the boundary lines of districts are the center lines of streets and alleys or such lines extended, railroad right-of-way lines, the center lines of creeks and waterways and the corporate limits line as it existed at the time of the enactment of this chapter.

Zoning Overlay Map. The Land Conservation Overlay District boundaries are determined by natural features such as wetlands, floodplains and steep slopes greater than 20%. An overlay zone is a zoning district which is applied over one or more previously established zoning districts, establishing additional or stricter standards and criteria for covered properties in addition to those of the underlying zoning district. The overlay zone is established to protect special features related to wetlands, steep slopes, and floodplain areas. As such, the boundaries follow natural features and not property lines.