Name: BASEMAP_Buildings

Display Field:

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <div style="text-align:Left;"><div><div><p><span>City of Cambridge, MA, GIS basemap development project encompasses the land area of City of Cambridge with a 200-foot fringe surrounding the area and Charles River shoreline towards Boston. The basemap data was developed at 1&quot; = 40' mapping scale using digital photogrammetric techniques. Planimetric features; both man-made and natural features like vegetation, rivers have been depicted. These features are important to all GIS/mapping applications and publication. A set of data layers such as Buildings, Roads, Rivers, Utility structures, 1 ft interval contours are developed and represented in the geodatabase. The features are labeled and coded in order to represent specific feature class for thematic representation and topology between the features is maintained for an accurate representation at the 1:40 mapping scale for both publication and analysis. The basemap data has been developed using procedures designed to produce data to the National Standard for Spatial Data Accuracy (NSSDA) and is intended for use at 1&quot; = 40 ' mapping scale. Where applicable, the vertical datum is NAVD1988.</span></p></div></div></div><a href="https://www.cambridgema.gov/GIS/gisdatadictionary/Basemap/BASEMAP_Buildings" target="_blank">Download Link</a>

Copyright Text:

Min. Scale: 144448

Max. Scale: 1128

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -7921640.19461725
YMin: 5214004.30222837
XMax: -7910951.81743886
YMax: 5221750.50582956
Spatial Reference: 102100 (3857)

Drawing Info:

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HasZ: true

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeNone

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• TYPE (type: esriFieldTypeString, alias: TYPE, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true, Coded Values: [BLDG: Building], [OUTBLDG: Outbuilding (shed,detached garage etc.,)], [MOBILE: Mobile home, trailer], ... 6 more ...)
• BASE_ELEV (type: esriFieldTypeDouble, alias: BASE_ELEV, SQL Type: sqlTypeOther, nullable: true, editable: true)
• ELEV_SL (type: esriFieldTypeDouble, alias: ELEV_SL, SQL Type: sqlTypeOther, nullable: true, editable: true)
• TOP_SL (type: esriFieldTypeDouble, alias: TOP_SL, SQL Type: sqlTypeOther, nullable: true, editable: true)
• ELEV_GL (type: esriFieldTypeDouble, alias: ELEV_GL, SQL Type: sqlTypeOther, nullable: true, editable: true)
• TOP_GL (type: esriFieldTypeDouble, alias: TOP_GL, SQL Type: sqlTypeOther, nullable: true, editable: true)
• BldgID (type: esriFieldTypeString, alias: BldgID, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• EditDate (type: esriFieldTypeString, alias: EditDate, SQL Type: sqlTypeOther, length: 4, nullable: true, editable: true, Coded Values: [2026: 2026])
• created_date (type: esriFieldTypeDate, alias: created_date, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: true)
• last_edited_date (type: esriFieldTypeDate, alias: last_edited_date, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: true)
• 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: New Feature
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 5/5/2026 12:01:41 AM

Schema Last Edit Date: 5/5/2026 12:01:41 AM

Data Last Edit Date: 5/5/2026 12:01:41 AM

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