| Historic Zoning of Loudoun County, VA | |
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Data format: SDE Feature Class File or table name: GISDBB.GISBROW.HZONING_POLY Coordinate system: Lambert Conformal Conic Theme keywords: planningCadastre, historic zoning |
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Abstract:
The Historic Zoning Feature Class constitutes the official zoning map for Loudoun County prior to adoption of the revisions to the 1993 Zoning Ordinance on January 6, 2003. The zoning boundaries generally follow parcel lines, although there are several exceptions. Zoning data is incomplete countywide due to unavailability of data within Town and Dulles International Airport limits. |
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Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.
The Historic Zoning Feature Class constitutes the official zoning map for Loudoun County prior to adoption of the revisions to the 1993 Zoning Ordinance on January 6, 2003. The zoning boundaries generally follow parcel lines, although there are several exceptions. Zoning data is incomplete countywide due to unavailability of data within Town and Dulles International Airport limits.
Historic Zoning is used to facilitate the administration of the zoning ordinance and gain a historical understanding of how zoning has been applied in Loudoun County.
The Pre 1/7/03 zoning data were compiled from paper zoning maps and zoning records. Official paper zoning maps were maintained beginning in the 1940's through 1987. In the early 1990's, the paper maps were converted to a digital data. From 1972 to 1993, zoning was administered in accordance with the 1972 Zoning Ordinance. In 1993, the County adopted a new zoning ordinance (some properties continue to be administered under the 1972 ordinance). Official mapping policies were adopted by the Board of Supervisors and were applied to the existing zoning map to complete the current map. Boundaries generally follow parcel lines, although there are several exceptions. Although the layer represents the official zoning map, a determination should be requested from the Zoning Administrator to verify zoning for a particular property. Data are stored in the corporate ArcSDE Geodatabase as a polygon feature class. The coordinate system is Virginia State Plane (North), Zone 4501, datum NAD83 HARN (vertical datum, if applicable, NAVD88), US Survey foot units.
publication date
Every reasonable effort has been made to assure the accuracy of these data. Loudoun County, Virginia does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data is at the risk of the user. These data were generated for use by Loudoun County and are available to the public. These data are intended for use at 1:2400 scale or smaller. Acknowledgement of Loudoun County would be appreciated in products derived from this data.
1 Harrison Street SE, 2nd floor
MS 60A
Retention of attribute accuracy throughout the coverage to geodatabase feature class coversion process was ensured by a QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have, on a record by record basis, identical attribution when comparing all concatenated fields to all the user-defined attribution.
Topologically clean
Features may have been eliminated or generalized due to scale and intended use. To assist Loudoun County, Virginia in the maintenance of the data, please provide any information concerning discovered errors, omissions, or other discrepancies found in the data.
Retention of coordinate accuracy throughout the coverage to geodatabase feature class conversion process was ensured by a QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have the same record total, and on a record by record basis, area, perimeter, and length differential of less than +/- 0.5%.
1993 Zoning Ordinance by Loudoun County Board of Supervisors, zoning maps, and records
Paper maps and records converted to digital format
This data set was part of a batch process that converted legacy data from ArcInfo coverage in Librarian to a single-tiled ArcInfo coverage in preparation for a final coversion to ArcSDE Geodatabase Feature Classes. Data were extracted from Librarian using the EXTRACT TOPOLOGICAL command. Multi-tiled data sets were extracted into multiple coverages and then combined based on the feature type(s). Layers with both polygon and arc feature classes were processed with the Arc commands, MAPJOIN and DISSOLVE. Arc feature classes alone were processed with the Arc commands, APPEND and DISSOLVE. Layers with both arc and point feature classes and point feature classes alone were processed with the Arc command, APPEND. When used, the Arc command, DISSOLVE, was given with the <#all> option. All coverages were then reprojected to HARN 83 using the following .prj file specifications: INPUT PROJECTION STATEPLANE UNITS FEET ZONE 5551 DATUM NAD27 NADCON PARAMETERS OUTPUT PROJECTION STATEPLANE UNITS FEET FIPSZONE 4501 DATUM HPGN NADCON PARAMETERS END This dataset was then converted to a feature class in a geodatabase in ArcSDE.
Internal feature number.
ESRI
Feature geometry.
ESRI
Zoning district (see 1993 and 1972 ordinances for permitted uses and specific requirements)
Louduon County
Ordinance under which the property is administered; does not necessarily correspond to the zone (e.g. a property may have a zone code of PDH3 for the zone in accordance with the 1993 ordinance, but it should have a value of 1972 for ordinance if it is administered as another zone, such as PDH24, under the 1972 ordinance).
Loudoun County
Indicates special circumstances of property
Loudoun County
part of Washington and Old Dominion Trail
Loudoun County
part of Route 28 tax district
Loudoun County
part of Dulles Toll Road
Loudoun County
part of Dulles Airport
Loudoun County
ZMAP (rezoning application) number (e.g. ZMAP-2000-0001); not consistently maintained
Loudoun County
Sequential number assigned to track edits made to the zoning layer within each year (e.g. Z2000-0001)
Loudoun County
Date the current zone came into effect; generally associated with an improved ZMAP application; not consistently maintained
Loudoun County
The zone and ordinance values concatenated; the first 6 characters are reserved for the zone and the last 4 are reserved for the ordinance
Loudoun County
Source that created or modified feature class
Loudoun County
Date feature class created or modified
Loudoun County
Not for public distribution. Internal User ID of editor creating or modifying feature class
Loudoun County
HZ_ZONE: Zoning district (see 1993 and 1972 ordinances for permitted uses and specific requirements)
Zone Short description: Full description A10 Agriculture: Agriculture and low density residential development with a maximum density of one unit per 10 acres. Cluster and hamlet options. A3 Agricultural/Residential: Agriculture and low density residential development with a maximum density of one unit per 3 acres with a predominantly agricultural character. Cluster and hamlet options. C1 Commercial: Commercial primarily retail and personal services. C1 is under 1972 ordinance and is only within the Route 28 Tax District. CLI Commercial/Light Industry: Mix of compatible light industrial uses, industrial-related business uses, and related retail uses on minimum two acre lots. Only along Route 50 from Fairfax/County line west to Route 659. New CLI district rezoning limited to parcels contiguous to existing CLI district. CR1 Countryside Residential: Residential development with a maximum density of 1 unit per acre. Not served by public water and sewer. Cluster and hamlet options. CR2 Countryside Residential: Residential development with a maximum density of 2 units per acre. Not served by public water and sewer. Cluster option with public water and/or sewer. CR3 Countryside Residential: Residential development with a maximum density of 3 units per acre. Not served by public water and sewer. Cluster option with public sewer. CR4 Countryside Residential: Residential development with a maximum density of 4 units per acre. Not served by public water and sewer. GB General Business: General destination retail and service businesses which serve the needs of residents and businesses in the vicinity, on one-half acre lots. Access to major collector or arterial roads (but cannot front on or abut collector or arterial roads). I1 Industrial: Primarily heavy industrial. I1 is under 1972 ordinance and is only within the Route 28 Tax District. IAD Dulles: Washington-Dulles International Airport MRHI - Mineral Resource/Heavy Industry: Diabase resource extraction operations (quarries) co-located with compatible heavy industrial uses. Specific use limitations for stone quarry operations. PDAAAR Planned Development: Planned adult residential communities. PDAAAR districts Active Adult/Age Restricted have a minimum of 25 acres, public sewer and water, and are served by one or more major arterial or collector roads. Consistent with locations designated for high-density urban residential development. PDCCCC Planned Development Commercial: Serves retail shopping needs of surrounding community. Center Community Center Minimum of 6 acres, maximum of 20 acres. PDCCNC Planned Development Commercial: Serves convenience needs of adjacent residential Center Neighborhood Center neighborhoods. Minimum of 1.5 acres, maximum of 6 acres. PDCCRC Planned Development Commercial: Large scale commercial centers which provide a wide range Center Regional Center of retail, office, and service uses, with one or more anchor stores, to the regional market. Minimum of 60 acres with controlled access to arterial roads. PDCCSC Planned Development Commercial: Small regional centers consisting of individual large and Center Small Regional Center small scale commercial uses selling a broad range of goods or services to a market beyond the local community. Minimum of 20 acres, maximum of 60 acres. Controlled access to a major collector. PDCH Planned Development: Highway related commercial districts. PDCH is under the 1972 Commercial Highway ordinance and is only within the Route 28 Tax District. PDGI Planned Development: Medium intensity industrial uses with public nuisance. General Industrial potential. PDH3 Planned Development Housing: Mixed use residential communities including single family and multifamily housing products with supportive non-residential uses, subject to an adopted concept development plan. Maximum overall residential density of 3 units per acre. PDH4 Planned Development Housing: Mixed use residential communities including single family and multifamily housing products with supportive non-residential uses, subject to an adopted concept development plan. Maximum overall residential density of 4 units per acre. PDH6 Planned Development Housing: Mixed use residential communities including single family and multifamily housing products with supportive non-residential uses, subject to an adopted concept development plan. Maximum overall residential density of 6 units per acre. PDIP Planned Development: Light and medium industrial uses with supporting accessory uses Industrial Park and facilities designed with a parklike environment. May be subject to a concept development plan. PDOP Planned Development Office Park: Office park established primarily for administrative, business, and professional offices designed in a parklike environment and subject to an adopted concept development plan. PDRDP Planned Development: Planned mixed employment park, subject to an adopted concept Research and Development Park development plan, which allows the mixing of research and development firms, office complexes, certain types of manufacturing and interrelated land uses. PDRV Planned Development: A rural, pedestrian oriented, mixed use community consisting of Rural Village single family detached houses, townhomes, apartments, stores, and employment centers located on 20% of the district and surrounded by the remaining farmland in an open space conservation easement. PDSA Planned Development: A district established to accommodate uses which require sizable Special Activity land area that may require functional separation from normal residential, commercial, or industrial development (e.g. airports, zoos, stadiums, etc.). PDSC Planned Development: Permits development of neighborhood, community, and regional Shopping Center shopping centers in scale with surrounding market areas. PDSC is under the 1972 ordinance. R1 Single Family Residential: Low density single family detached development with a maximum density of 1 unit per acre. Served by public water and sewer. Cluster options. R2 Single Family Residential: Low to moderate density single family detached development with a maximum density of 2 units per acre. Served by public water and sewer. Cluster and traditional design options. R4 Single Family Residential: Moderate density single family detached development with a maximum density of 3 units per acre. Served by public water and sewer. Cluster and traditional design options. R8 Single Family Residential: Moderate to medium density single family detached development with a maximum density of 4 units per acre. Served by public water and sewer. Cluster and traditional design options. R16 Townhouse/Multifamily: Single family attached and multifamily residences at a maximum Residential density of 16 units per acre. Served by public water and sewer. In areas designated for infill development. Traditional design option. R24 Multifamily Residential: Multifamily residences at a maximum density of 24 dwelling units per acre. Served by public water and sewer. In areas designated for infill development. RC Rural Commercial: Commercial properties predominantly located in rural Loudoun. Uses are compatible with scale and character of existing villages. Minimum lot size of 10,000 square feet. Buildings pulled up to street and parking in rear or on street. ROADS Roads: Roads and prescriptive easements. TOWNS Incorporated towns: Districts zoned by the incorporated town and administered by the town.
HZ_UPD_SOURCE: Source that created or modified feature class
Source Definition 0 Undetermined 1 Legacy 2 County 3 Contract
1 Harrison Street SE, 2nd Floor
MS 65
Every reasonable effort has been made to assure the accuracy of these data. Loudoun County, Virginia does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data is at the risk of the user.
ESRI Personal Geodatabase Feature Class
ESRI Shapefile
AutoCad Digital Exchange File
Size limit: 4.5 GB. Visit our website at: http://www.loudoun.gov/omagi/index.htm, click on "OMAGI Documents and Information." Our "Products & Services" link will lead you to order forms and lists of available data. Hardcopy maps may also be available; please contact the Mapping Office Public Information Counter for more information
1 Harrison Street SE, 2nd Floor
MS 65