Zoning Dictionary

Category: Regulatory Terms

Grade, Percentage

The slope of land calculated by dividing the difference in elevation between two points by the distance between the same points.

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Gross Density

The ratio of dwellings to the overall area of development, excluding all streets.

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Gross Population Density

The ratio of residents to the overall area of land, excluding streets. The measure of the total resident population of a large area usually a whole city, divided by the total urbanized land area of the city, including land in residential use, employment use, and all public spaces such as roads, parks, etc. but excluding […]

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Gross Residential Density

Number of units per hectare calculated by dividing unit yield by gross residential land area. Lands included in this calculation include schools, local roads, parks, commercial uses, institutional buildings, stormwater management facilities and open space but not including major transportation corridors, major open space and regional facilities.

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Hazardous Site

Property or lands, that for reasons of public health, safety, or potential property damage, are unsafe for development as a result of naturally occurring or human-made perils. They may include unstable lands or areas subject to change as a result of their previous use as mining sites, sites prone to erosion, slopes and banks, unstable […]

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Hazardous Waste

Waste materials which by their nature are inherently dangerous to handle or dispose of, such as radioactive materials, certain chemicals and biological wastes. Any waste, or combination wastes, which because of quantity, concentration, physical, or chemical, characteristics may cause or significantly contribute to an increase in mortality or an increase in serious irreversible or incapacitating […]

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Holding Zone

A zone established in the zoning ordinance on a temporary basis awaiting applications for rezoning to desired uses.

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Incidental

An activity or item that occupies or involves not more than ten percent (10%) of a whole, such as gross floor area or inventory, is considered as an incidental use of the land, while an activity or item that occupies or involves more than ten percent (10%) of a whole is considered a principal use […]

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Increase in Intensity

An increase in the concentration of activity on a property including an increase in gross floor area or the number of dwelling units, expanded hours of operation, provision of additional services, and the addition of the sale of alcoholic beverages. In the case of nonconforming uses, any increase above and beyond the status quo is […]

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Land

Ground, soil or earth including structures, on, above or below the surface.

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