Alexandria

Medical care facility. Buildings or portions thereof with a gross floor area greater than 20,000 square feet used for medical, psychiatric, surgical, massage or physical therapy, abortion services or other health-related services, under common ownership or control, primarily on an outpatient basis.

Buildings or portions thereof with a gross floor area greater than 20,000 square feet used for medical, psychiatric, surgical, massage or physical therapy, abortion services or other health-related services, under common ownership or control, primarily on an outpatient basis.

Monument. Permanent concrete or stone markers not less than five inches in diameter and not less than 30 inches in length, with an appropriate center mark of nonferrous metal pin or plate.

Permanent concrete or stone markers not less than five inches in diameter and not less than 30 inches in length, with an appropriate center mark of nonferrous metal pin or plate.

Nursing or convalescent home or hospice. An establishment which provides 24 hour convalescent or chronic care, or both, for three or more individuals who are not related to the operator and who, by reason of advanced age, chronic illness or infirmity, are unable to care for themselves.

An establishment which provides 24 hour convalescent or chronic care, or both, for three or more individuals who are not related to the operator and who, by reason of advanced age, chronic illness or infirmity, are unable to care for themselves.

Office complex. A building or group of buildings under common ownership and control which is four or more stories in height and primarily office use, but may include other uses, and which is a minimum of 50,000 square feet in size.

A building or group of buildings under common ownership and control which is four or more stories in height and primarily office use, but may include other uses, and which is a minimum of 50,000 square feet in size.

Open and usable space. That portion of a lot at ground level which is: (A) No less than eight feet in width and length. (B) Unoccupied by principal or accessory buildings; ...

That portion of a lot at ground level which is: (A) No less than eight feet in width and length. (B) Unoccupied by principal or accessory buildings; (C) Unoccupied by principal or accessory structures except for fences, walls, or trellises and pergolas in accordance with section 7-202(A)(5); (D) Unobstructed by other than recreational facilities; and (E) Not used in whole or in part as roads, alleys, emergency vehicle easement areas, driveways, maneuvering aisles or off-street parking or loading berths.

Open fence. A fence structure the surface of at least 50 percent of which is uncovered.

A fence structure the surface of at least 50 percent of which is uncovered.

Setback ratio. The ratio of the setback distance to the height of the building.

Walkability index. A measure of the pedestrian-friendliness of an area, based on factors such as sidewalk connectivity, street connectivity, and land use mix.

Wetlands. Areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions.

The RD zone, originally established to provide land areas for high rise, high density multi-unit structures, was amended to prohibit any additional land being so zoned after March 24, 1965.

The RM zone is established to provide and maintain land areas for medium density residential neighborhoods of single-unit, two-unit and townhouse dwellings.

The RS zone is established to provide land areas for low to medium density townhouse development of approximately 15 units per acre which may be appropriate for infill sites in proximity to neighborhoods of single-unit detached homes.

The RT zone is established to provide land areas for low density residential townhouse development at approximately nine units per acre which may be appropriate for infill sites in proximity to neighborhoods of low density single-unit, two-unit, and multi-unit up to four units dwellings.

The RMF zone is established to provide land areas for multi-unit residential development and to enhance or preserve long-term affordability of housing.