Layers:

Layer: Difficult_Development_Areas2025 (0)


Name: Difficult_Development_Areas2025

Display Field: DDA_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Difficult Development Areas (DDA) for the Low Income Housing Tax Credit program are designated by U.S. Department of Housing and Urban Development (HUD) and defined in statute as areas with high construction, land, and utility costs relative to its Area Median Gross Income (AMGI).  DDAs in metropolitan areas are designated along Census ZIP Code Tabulation Area (ZCTA) boundaries.  DDAs in non-metropolitan areas are designated along county boundaries.  DDAs may not contain more than 20% of the aggregate population of metropolitan and non-metropolitan areas, which are designated separately. To learn more about Difficult Development Areas (DDA) visit: https://www.huduser.gov/portal/datasets/qct.html, for questions about the spatial attribution of this dataset, please reach out to us at GISHelpdesk@hud.gov. Data Dictionary: DD_Difficult Development Areas Date of Coverage: 2023-2024Last Updated: 10-2023

Copyright Text: U.S. Department of Housing and Urban Development, U.S. Census Bureau

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 1000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -19942590.5397
YMin: -1637242.786
XMax: 20012847.4219
YMax: 11537127.3335
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:

Type ID Field:

Fields:
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• ZCTA5 (type: esriFieldTypeString, alias: ZCTA5, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• DDA_CODE (type: esriFieldTypeString, alias: DDA_CODE, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• DDA_TYPE (type: esriFieldTypeString, alias: DDA_TYPE, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• DDA_NAME (type: esriFieldTypeString, alias: DDA_NAME, SQL Type: sqlTypeOther, length: 255, 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: Difficult_Development_Areas2025
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 2/24/2025 10:26:40 PM

Schema Last Edit Date: 2/24/2025 10:26:40 PM

Data Last Edit Date: 2/24/2025 10:26:40 PM