zoning (redirected from Euclidean zoning)

zoning, legislative regulations by which a municipal government seeks to control the use of buildings and land within the municipality. It has become, in the United States, a widespread method of controlling urban and suburban construction and removing congestion and other defects of existing plans. Great Britain, Germany, and Sweden preceded the United States in zoning for the purpose of controlling building in new areas adjoining cities, but now use comprehensive plans. The zoning resolution adopted by New York City in 1916 was the first in the United States and has profoundly affected New York architecture, while the standard it set has been followed by other cities. By this law (often amended since 1916) New York City is divided into use districts, area districts, and height districts. Use districts are of four classes: residential, business, retail, and unrestricted. The height and area limitations serve to insure light and air for the occupants of city buildings. In the United States the state legislatures hold the power to authorize zoning, within which the separate cities enact their own zoning ordinance and it is typically closely integrated with a city planning program. Zoning has been used to maintain the suburban, and class character of a municipality, however, and as such has been called exclusionary zoning; it has produced racial and economic segregation. The U.S. Supreme Court has ruled against such zoning in directing that public housing in Chicago be spread beyond the city limits. The New Jersey courts have gone further, declaring that developing communities have an obligation to accommodate their fair share of a region's needs for modest homes and apartments.

Bibliography

See S. J. Makielski, Jr., The Politics of Zoning: The New York Experience (1966); N. Williams, The Structure of Urban Zoning, and Its Dynamics in Urban Planning and Development (1966); S. I. Toll, Zoned America (1969); R. B. Andrews, ed., Urban Land Use Policy: The Central City (1972); R. E. Babcock and C. L. Sieman, The Zoning Game Revisited (1985); A. J. King, Law and Land Use in Chicago (1986).

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zoning

Legislative method of controlling land use by regulating considerations such as the type of buildings that may be erected and population density. German and Swedish cities first applied zoning regulations in the late 19th century to address the problems of urban congestion and building height. The earliest U.S. zoning ordinances, which date from the beginning of the 20th century, were motivated by the need to regulate the location of commercial and industrial activities. In 1916 New York City adopted the first comprehensive zoning law; it and other early regulations were designed to protect property values and preserve light and air. Modern zoning regulations divide land use into three types: residential, commercial, and industrial. Within each designation, more specific aspects of development (e.g., building proximity, height, and type) are also determined. Zoning is often used to maintain the distinctive character of a town or city; an adverse consequence of such zoning is economic segregation. The Supreme Court of the United States ruled against such laws in 1977 when it declared the zoning regulations of one Chicago suburb discriminatory.

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zoning [′zōn·iŋ]

(civil engineering)

Designation and reservation under a master plan of land use for light and heavy industry, dwellings, offices, and other buildings; use is enforced by restrictions on types of buildings in each zone.

(crystallography)

A variation in the composition of a crystal from core to margin due to a separation of the crystal phases during its growth by loss of equilibrium in a continuous reaction series.

(electromagnetism)

The displacement of various portions of the lens or surface of a microwave reflector so the resulting phase front in the near field remains unchanged. Also known as stepping.

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zoning

The control by a municipality of the use of land and buildings, the height and bulk of buildings, the density of population, the relation of a lot’s building coverage to open space, the size and location of yards and setbacks, and the provision of any ancillary facilities such as parking. Zoning, established through the adoption of a municipal ordinance, is a principal instrument in implementing a master plan.