Layers:

Layer: Transit Stations (1)


Name: Transit Stations

Display Field: STATION

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description:

Copyright Text:

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

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XMax: -7912264.07204081
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Spatial Reference: 102100 (3857)


Drawing Info:

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HasM: false

Has Attachments: false

Has Geometry Properties: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
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• FID (type: esriFieldTypeInteger, alias: FID, SQL Type: sqlTypeOther, nullable: true, editable: true)
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• LINE (type: esriFieldTypeString, alias: LINE, SQL Type: sqlTypeOther, length: 10485758, nullable: true, editable: true)
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Templates:

Name: Transit Stations
Description:
Drawing Tool: esriFeatureEditToolPoint
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 5/3/2026 10:32:43 PM

Schema Last Edit Date: 5/3/2026 10:32:43 PM

Data Last Edit Date: 5/3/2026 10:32:43 PM

Layer: Rapid Transit Lines (2)


Name: Rapid Transit Lines

Display Field: LINE

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description:

Copyright Text:

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

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YMin: 5217166.44694772
XMax: -7911879.86729236
YMax: 5221053.95068002
Spatial Reference: 102100 (3857)


Drawing Info:

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HasM: false

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Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field: LINE

Fields:
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• FID (type: esriFieldTypeInteger, alias: FID, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LINE (type: esriFieldTypeString, alias: LINE, SQL Type: sqlTypeOther, length: 10485758, nullable: true, editable: true)
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• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Types:

ID: GREEN
Name: GREEN
Domains:

Templates:

Name: GREEN
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

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ID: ORANGE
Name: ORANGE
Domains:

Templates:

Name: ORANGE
Description:
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Prototype:

Attributes:

• LINE: ORANGE

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ID: RED
Name: RED
Domains:

Templates:

Name: RED
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• LINE: RED

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Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 5/3/2026 10:32:44 PM

Schema Last Edit Date: 5/3/2026 10:32:44 PM

Data Last Edit Date: 5/3/2026 10:32:44 PM

Layer: Somerville City Boundary (3)


Name: Somerville City Boundary

Display Field: AREA

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description:

Copyright Text:

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

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YMin: 5216949.34014094
XMax: -7911732.13862768
YMax: 5223821.73439158
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: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
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• AREA (type: esriFieldTypeDouble, alias: AREA, SQL Type: sqlTypeOther, nullable: true, editable: true)
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• SOMBND_ID (type: esriFieldTypeDouble, alias: SOMBND_ID, SQL Type: sqlTypeOther, nullable: true, editable: true)
• GXMIN (type: esriFieldTypeDouble, alias: GXMIN, SQL Type: sqlTypeOther, nullable: true, editable: true)
• GYMIN (type: esriFieldTypeDouble, alias: GYMIN, SQL Type: sqlTypeOther, nullable: true, editable: true)
• GXMAX (type: esriFieldTypeDouble, alias: GXMAX, SQL Type: sqlTypeOther, nullable: true, editable: true)
• GYMAX (type: esriFieldTypeDouble, alias: GYMAX, SQL Type: sqlTypeOther, 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: Somerville City Boundary
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 5/3/2026 10:32:44 PM

Schema Last Edit Date: 5/3/2026 10:32:44 PM

Data Last Edit Date: 5/3/2026 10:32:44 PM

Layer: Zoning (4)


Name: Zoning

Display Field: ZONECODE

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Polygon feature class representing the City of Somerville, Massachusetts zoning map adopted December 12, 2019 as part of the City of Somerville Zoning Overhaul (https://www.somervillezoning.com/). Last amended by City Council December 12, 2024 per Ordinance 2024-16.This dataset last updated April 4, 2025.

Copyright Text: City of Somerville GIS Coordinator, City of Somerville Assessor, City of Somerville Planning & Zoning Division

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -7918691.67160544
YMin: 5216949.34014094
XMax: -7911732.11693416
YMax: 5223826.11244639
Spatial Reference: 102100 (3857)


Drawing Info:

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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True


Global ID Field:

Type ID Field: ZONEDESC

Fields:
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Name: Assembly Square
Domains:

Templates:

Name: Assembly Square
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

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---

ID: Commercial Core 4
Name: Commercial Core 4
Domains:

Templates:

Name: Commercial Core 4
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

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---

ID: Commercial Core 5
Name: Commercial Core 5
Domains:

Templates:

Name: Commercial Core 5
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

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---

ID: High Rise
Name: High Rise
Domains:

Templates:

Name: High Rise
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

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---

ID: Mid Rise 3
Name: Mid Rise 3
Domains:

Templates:

Name: Mid Rise 3
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

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---

ID: Mid Rise 4
Name: Mid Rise 4
Domains:

Templates:

Name: Mid Rise 4
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

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---

ID: Mid Rise 5
Name: Mid Rise 5
Domains:

Templates:

Name: Mid Rise 5
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

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---

ID: Mid Rise 6
Name: Mid Rise 6
Domains:

Templates:

Name: Mid Rise 6
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• ZONEDESC: Mid Rise 6

---


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 5/3/2026 10:32:47 PM

Schema Last Edit Date: 5/3/2026 10:32:47 PM

Data Last Edit Date: 5/3/2026 10:32:47 PM