School, Public: A building or use within a building operated or chartered by the District of Columbia Board of Education or the District of Columbia Public Charter School Board for educational purposes and such other community uses as deemed necessary and desirable. The term shall include all educational functions, the building or structure required to house them, and all accessory uses normally incidental to a public school, including but not restricted to athletic fields, field houses, gymnasiums, parking lots, greenhouses, playgrounds, stadiums, and open space. The term also shall include a community-centered school campus; provided, that no part of the building or structure shall be used to house the administrative offices or maintenance and repair shop intended or used for the entire school system, or as a technical or vocational school.

Self-Storage Establishment: A building devoted to the storing of personal property (property other than real property) that:

  1. Consists of a building partitioned into one (1) or more enclosed and lockable storage units at least one of which does not exceed four hundred square feet (400 sq. ft.) in area, for lease on an individual basis; and
  2. Is leased on an individual basis to persons or businesses to store personal property on a self-service basis in which the lessee has control over the access and use of the self-storage space.

Service/Delivery Loading Space: An off-street space provided for motor vehicles that are twenty feet (20 ft.) in length or less, and that are making deliveries and/or providing a maintenance service. This space shall not be considered a parking space or a loading berth.

Setback, Front: A distance required between a building and a street lot line, and measured from the street lot line inward to the lot.

Sexually-Oriented Business Establishment: An establishment having as a substantial or significant portion of its stock in trade, books, magazines, and other periodicals, films, materials, and articles, or an establishment that presents as a substantial or significant portion of its activity, live performances, films, or other materials, that are distinguished or characterized by their emphasis on matters depicting, describing, or related to specified sexual activities and specified anatomical areas. These establishments may include, but are not limited to, bookstores, newsstands, theaters, and amusement enterprises. If an establishment is a sexually-oriented business establishment as defined here, it shall not be deemed to constitute any other use permitted under the authority of this title.

Shed: An accessory building, not used for habitable or automobile purposes, that does not exceed 50 square feet (50 sq. ft.) in area and is less than 10 feet (10 ft.) in overall height.

Specified Anatomical Areas: Parts of the human body as follows:

  1. Less than completely and opaquely covered human genitals, pubic region,
    buttock, and female breast below a point immediately above the top of the areola; and
  2. Human genitals in a discernibly turgid state, even if completely and opaquely covered.

Specified Sexual Activities: The following activities:

  1. Acts of human masturbation, sexual intercourse, sexual stimulation or arousal, sodomy, or bestiality; and
  2. Fondling or other erotic touching of human genitals, pubic region, buttock, or breast.

Square: Land designated as a square on the records of the Surveyor of the District of Columbia.

Stable, Private: An accessory building housing not more than four (4) horses or other equine animals for private use and not for remuneration, hire, or sale. The building may also house not more than four (4) horse-drawn vehicles.

Stable, Public: A stable, other than a private stable.

Stealth Structure: A free standing structure, or an extension of a building the primary purpose of which is to enclose and screen antennas from view. Such structures may include, but are not limited to flag poles, tree poles, bell towers. Stealth antenna structures may include, but are not limited to, flag poles, light poles, fence supports, steeples, cupolas, artificial trees, and other appropriate architectural elements.

Story: The space between the surface of two (2) successive floors in a building or between the top floor and the ceiling or underside of the roof framing. The number of stories shall be counted at the point from which the height of the building is measured. For the purpose of determining the maximum number of permitted stories, the term "story" shall not include cellars or penthouses.

Story, Top: The uppermost portion of any building or structure that is used for purposes other than penthouses. The term "top story" shall exclude architectural embellishment.

Street: A public highway designated as a street, avenue, or road on the records of the Surveyor of the District of Columbia.

Street Frontage: The property line where a lot abuts upon a street. When a lot abuts upon more than one (1) street, the owner shall have the option of selecting which is to be the front for purposes of determining street frontage.

Street, Designated: A street within the boundaries of the D zones whose categorization as Primary, Secondary or Tertiary indicates that a building with
frontage on that street must adhere to additional dimensional or use regulations that would not apply to a building in a D zone without frontage on a Designated Street.

Street, Designated Business: For the purpose of administering this title, that portion of the Height Act that designates certain streets as "business streets" shall be interpreted to mean those sides and portions of any street located in an MU,
NC, PDR, or D zone, or any zone in Subtitle K.

Streetcar Line: A streetcar or light rail line developed and operated in partnership by the District Department of Transportation (DDOT) and the Washington Metropolitan Area Transit Authority (WMATA).

Structure: Anything constructed, including a building, the use of which requires permanent location on the ground, or anything attached to something having a permanent location on the ground and including, among other things, radio or television towers, reviewing stands, platforms, flag poles, tanks, bins, gas holders, chimneys, bridges, and retaining walls. The term structure shall not include mechanical equipment, but shall include the supports for mechanical equipment. Any combination of commercial occupancies separated in their entirety, erected, or maintained in a single ownership shall be considered as one (1) structure.

Sustainability: To create and maintain conditions, under which humans and nature can exist in productive harmony, that permit fulfilling the social, economic, and other requirements of present and future generations of District residents.