Layers:

Layer: Subdivision Blocks (0)


Name: Subdivision Blocks

Display Field: MAP_GRID_QUAD

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description:

This layer contains data defining the exterior boundaries of subdivided land within subdivisions in Fairfax County, Virginia. The Block layer was created to depict subdivided land areas within subdivisions defined by recorded documents (plats) for the County of Fairfax. The polygons portrayed on this layer define the third portion of the County's Parcel Identification Numbering system (Map / Subdivision / Block / Parcel). Blocks are indicated on the property maps using a number within a single circle and boundaries that have heavy dashed lines. Information portrayed on this layer was initially derived from the ink-on-mylar property maps maintained by the County since the early 1960s.

For more information go to the Geospatial Property Data Guide.

Contact: Fairfax County Department of Information Technology GIS Division

Data Accessibility: Publicly Available

Update Frequency: Daily

Last Revision Date: 1/1/2000

Creation Date: 1/1/2000

Feature Dataset Name: GISMGR.PARCELS

Layer Name: GISMGR.BLOCKS



Copyright Text: The data set was created by Analytical Surveys Incorporated (ASI) and Landata under contract to Fairfax County. Quality control checks were performed by Engineering Systems Incorporated and Dewberry and Davis. Staff from the GIS branch were also used for quality control checking. Since 2001 Fairfax County staff have been solely responsible for maintaining this data.

Min. Scale: 18055.954822

Max. Scale: 0

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -8626664.77841584
YMin: 4670300.76475552
XMax: -8575594.41186227
YMax: 4729282.59420126
Spatial Reference: 102100 (3857)


Drawing Info:

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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)
• MAP_GRID_QUAD (type: esriFieldTypeString, alias: Tax Map Grid Number, SQL Type: sqlTypeOther, length: 5, nullable: true, editable: true)
• DOUBLE_CIRCLE (type: esriFieldTypeString, alias: Subdivision Number, SQL Type: sqlTypeOther, length: 2, nullable: true, editable: true)
• SINGLE_CIRCLE (type: esriFieldTypeString, alias: Block Number, SQL Type: sqlTypeOther, length: 2, nullable: true, editable: true)
• GlobalID (type: esriFieldTypeGlobalID, alias: GlobalID, SQL Type: sqlTypeOther, length: 38, nullable: false, 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: Subdivision Blocks
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 3/18/2025 5:49:30 AM

Schema Last Edit Date: 3/18/2025 5:49:30 AM

Data Last Edit Date: 3/18/2025 5:49:25 AM