Revision Date: June 17, 1998
DIVISION C: ENVIRONMENTAL IMPACT DISTRICTS
AI-Airport Impact Overlay District
Purpose. This district is established to acknowledge the unique land use
impacts of airports, regulate the siting of noise sensitive uses, ensure that the
heights of structures are compatible with airport operations, and complement
Federal Aviation Administration regulations regarding noise and height.
The Airport Impact (AI) Overlay District boundaries shall be based on
the 60 and 65 Ldn noise contours and an area that extends one (1) mile
beyond the 60 Ldn contours. The Board shall use as a basis for
delineating the Ldn noise contour the following sources:
(1) Washington Dulles International Airport: The FAA Part 150
Noise Compatibility Programs, Washington Dulles International
Airport, August, 1992, and
Leesburg Municipal Airport: Environmental Assessment Report.
For the purpose of administering these regulations the Airport Impact
Overlay District shall have three (3) components:
Ldn - 65 or higher.
Ldn 60 - Ldn 65.
(3) Within the A-I overlay district, but outside the Ldn 60 contour.
Overlay District Established. The Airport Impact (AI) Overlay District is
hereby established as an overlay district, meaning that it is a district overlaid
upon other districts. Land within the Airport Impact (AI) Overlay District may
be used as permitted in the underlying district, subject to the additional
regulations of this district.
Use Limitations. In addition to the use limitations and regulations for the
zoning district over which an Airport Impact (AI) Overlay District is located, the
following use limitations shall apply:
For areas outside of, but within one (1) mile of the Ldn 60.
Full Disclosure Statement. For all residential dwelling units to
be constructed outside of, but within one (1) mile of the Ldn 60.
The applicant shall