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
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:
{"renderer":{"type":"simple","symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[242,189,252,0],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[52,52,52,255],"width":1}}},"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:
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
Supported Operations:
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Generate Renderer
Validate SQL
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