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Find a Commonwealth ResourceLoudoun County
The Existing Parcels and Structures map is an interactive tool that contains parcels and structures that are developed and maintained by the Department of Planning and Zoning . Please use the link to the Help Document…
Updated Oct 10, 2026
Loudoun County
The geology of Loudoun County, Virginia, was mapped in 1988 through 1991 under a cooperative agreement between the U.S. Geological Survey (USGS) and the Loudoun County Department of Environmental Resources.This geologic…
Updated Oct 10, 2026
Loudoun County
Sidewalks, trails, and shared use paths are mapped in house by Loudoun County Office of Mapping and Geographic staff using existing base map planimetric data, aerial imagery, and a limited amount of GPS work (primarily…
Updated Oct 10, 2026
Loudoun County
The Big Tree Registry is a list representing some of the largest trees in Loudoun County. Candidates for the Big Tree Registry qualify based upon three characteristics: Tree Height Trunk Circumference 1/4 of the Average…
Updated Oct 10, 2026
Loudoun County
The Big Tree Registry is a list representing some of the largest trees in Loudoun County. Candidates for the Big Tree Registry qualify based upon three characteristics: Tree Height Trunk Circumference 1/4 of the Average…
Updated Oct 10, 2026
Loudoun County
This web mapping application identifies all of the residential building permits that were issued by Loudoun County during 2024. The residential building permits include single-family attached, single-family…
Updated Oct 10, 2026
Loudoun County
This web mapping application identifies all of the residential building permits that were issued by Loudoun County during 2023. The residential building permits include single-family attached, single-family…
Updated Oct 10, 2026
Loudoun County
Loudoun County, Office of Mapping and Geographic Information (OMAGI) has a seamless countywide base map geodatabase that can be used as a reference when mapping all other data. Base Map data layers include…
Updated Oct 10, 2026
Winchester
This data shows the digitized building footprints of buildings located within the City of Winchester, Virginia. This data was collected off Eagleview 2017 aerial imagery and was provided to the City after the flight.
Updated Oct 5, 2026
Loudoun County
The purpose of the Available Land Database is to provide a matching service allowing interested parties to connect with landowners. The database lists sites that are zoned for office or industrial uses, are vacant, and…
Updated Oct 10, 2026
Loudoun County
More Metadata Data updated daily. A parcel is a tract or plot of land surveyed and defined by legal ownership. Data were compiled from plats and deeds recorded at the Clerk of the Court and from historic tax maps.…
Updated Oct 10, 2026
Loudoun County
See Metadata ZOAM-2020-0002, Prime Agricultural Soils and Cluster Subdivision was adopted in June 2024, with an effective date of March 12, 2025, resulted in the amendment ordinances and revised regulations to improved…
Updated Oct 10, 2026
Loudoun County
More Metadata The Reservoir Protection Zones have been implemented to increase reservoir protection and overall drinking water quality. Reservoir Protection Zones are areas, as defined in the Facilities Standards Manual…
Updated Oct 10, 2026
Loudoun County
More Metadata Planar Index of Loudoun County is used primarily for locator reference and establishes the first 3 digits in the MCPI number for parcels. This information can also be known as Map, Sheet, or Tile number in…
Updated Oct 10, 2026
Loudoun County
More Metadata The Limestone Overlay District (LOD) is a zoning overlay district adopted by the Loudoun County Board of Supervisors on 2/17/2010 and administered by the Loudoun County Department of Building and…
Updated Oct 10, 2026
Loudoun County
More Metadata Maintenance and Update Frequency: Floodplain boundaries are updated by Building and Development staff as detailed floodplain studies are submitted and floodplain alterations are approved and structures are…
Updated Oct 10, 2026
Loudoun County
An Assessment of Existing and Potential Tree Canopy in Loudoun County, Virginia. The interactive TreePlotter Canopy Mapping Tool illustrates how tree canopy coverage is distributed across Loudoun County and provides…
Updated Oct 10, 2026
Loudoun County
More Metadata The zoning layer constitutes the official zoning map for Loudoun County and is a component of the official zoning ordinance. It reflects expiration of grandfathering provisions of the 1972 Zoning Ordinance…
Updated Oct 10, 2026
Loudoun County
More Metadata This layer contains the geographical boundaries of the Metropolitan Washington Council of Government's Traffic Analysis Zones (TAZ) of Loudoun County, Virginia. TAZs are designed to be relatively…
Updated Oct 10, 2026
Loudoun County
The AIOD is administered by Loudoun County. The boundaries are based on the Loudness Day Night (LDN) noise contours that were updated by the Metropolitan Area Airports Authority (MWAA) in 2019, as well as a one-mile…
Updated Oct 10, 2026
