Name: 2023 Countywide Impervious

Display Field: IMPERVIOUS_TYPE

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This polygon dataset represents impervious surface in Fairfax County. This dataset also includes areas that drain to Fairfax County. This includes portions of City of Fairfax, City of Alexandria, Falls Church, Arlington and Loudoun County. The impervious area in Fairfax County was originally captured in the 2017 planimetric data update. The dataset has since been updated using the 2022/2023 Eagleview orthophotos. The source impervious data for Falls Church is from 2017. The source impervious for Arlington and Loudoun is updated periodically. This dataset is a snapshot of the current impervious data from each jurisdiction on April 1, 2025. Fairfax County Land Development Services will update this layer when Fairfax County receives updated planimetric data. This dataset is designed for use in the Drainage Basin Delineation Tool. The tool delineates drainage basins and calculates the impervious area. Contact: Land Development Services Data Accessibility: Publicly AvailableUpdate Frequency: NeverLast Revision Date: 4/1/2025Creation Date: 4/1/2025Layer Name: LDSAMGR.COUNTY_IMPERVIOUS_2023

Copyright Text: Fairfax County, Virginia; Land Development Services

Min. Scale: 10000

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 11750490.8941328
YMin: 6911944.72678781
XMax: 11900906.9495993
YMax: 7072018.39975005
Spatial Reference: 102746 (2283)

Drawing Info:

{"renderer":{"type":"simple","symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[204,204,204,255],"outline":{"type":"esriSLS","style":"esriSLSNull","color":[0,0,0,255],"width":0}}},"scaleSymbols":true,"transparency":0,"labelingInfo":null}

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field: GlobalID

Type ID Field:

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• IMPERVIOUS_TYPE (type: esriFieldTypeString, alias: Impervious type: , SQL Type: sqlTypeOther, length: 100, nullable: true, editable: false, Coded Values: [Airport: Airport], [Building: Building], [Building Addition: Building Addition], ... 6 more ...)
• IMPERVIOUS_SUBTYPE (type: esriFieldTypeString, alias: Impervious subtype:, SQL Type: sqlTypeOther, length: 100, nullable: true, editable: false, Coded Values: [Apron: Apron], [Deck: Deck], [Other: Other], ... 20 more ...)
• JURISDICTION_SOURCE (type: esriFieldTypeString, alias: Jurisdiction source:, SQL Type: sqlTypeOther, length: 100, nullable: true, editable: false, Coded Values: [Fairfax County: Fairfax County ], [Loudoun County: Loudoun County ], [Falls Church: Falls Church ], ... 2 more ...)
• IMPERVIOUS_AREA (type: esriFieldTypeDouble, alias: Impervious area (sqft): , SQL Type: sqlTypeOther, nullable: true, editable: false)
• GlobalID (type: esriFieldTypeGlobalID, alias: GlobalID, SQL Type: sqlTypeOther, length: 38, nullable: false, editable: false)
• created_user (type: esriFieldTypeString, alias: created_user, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: false)
• created_date (type: esriFieldTypeDate, alias: created_date, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: false)
• last_edited_user (type: esriFieldTypeString, alias: last_edited_user, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: false)
• last_edited_date (type: esriFieldTypeDate, alias: last_edited_date, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: false)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: 2023 Countywide Impervious
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 11/2/2025 6:22:54 PM

Schema Last Edit Date: 11/2/2025 6:22:54 PM

Data Last Edit Date: 11/2/2025 6:22:42 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat