• Organization: District of Columbia
• Updated: 2026-02-14T11:42:55.000Z

Air right lots are reflect a party’s right to construct an improvement above an existing area of land that is not owned by the constructor. They are a type of development right in real estate...

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• Organization: District of Columbia
• Updated: 2026-02-14T11:42:55.000Z

Air right lots are reflect a party’s right to construct an improvement above an existing area of land that is not owned by the constructor. They are a type of development right in real estate...

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• Organization: District of Columbia
• Updated: 2026-02-14T11:42:55.000Z

Air right lots reflect a party’s right to construct an improvement above an existing area of land that is not owned by the constructor. They are a type of development right in real estate...

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• Organization: District of Columbia
• Updated: 2026-02-18T10:41:57.000Z

Condo lots are individual lots for each condominium. The lot numbers normally range from 2000-6999. These condo lots are not geographically defined other than being within a air rights, record,...

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• Organization: District of Columbia
• Updated: 2026-02-18T10:41:57.000Z

The Condo Relate table contains attributes of air rights, record, and tax lots approved for active condos. Condominium documentation (Condo Book & Page) is approved and recorded by the DC's...

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• Organization: District of Columbia
• Updated: 2026-02-18T10:41:57.000Z

This layer is a subset of ITSPE and and UBIDs representing vacant and blighted property building footprints. The tax assessment roll public extract (ITSPE) is used for assessment and property...

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• Organization: District of Columbia
• Updated: 2026-02-18T10:41:57.000Z

This table is a subset of ITSPE and represents vacant and blighted property. The tax assessment roll public extract (ITSPE) is used for assessment and property analysis, to send property tax bills...

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• Organization: District of Columbia
• Updated: 2026-02-17T22:00:01.000Z

This table is a subset of ITSPE and represents vacant property.The tax assessment roll public extract (ITSPE) is used for assessment and property analysis, to send property tax bills and notices,...

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• Organization: District of Columbia
• Updated: 2026-02-17T22:00:01.000Z

The tax assessment roll public extract (ITSPE) is used for assessment and property analysis, to send property tax bills and notices, and stores comprehensive tax information such as ownership,...

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• Organization: District of Columbia
• Updated: 2026-02-14T11:42:55.000Z

A layer showing the District of Columbia government related structures. The dataset contains polygons representing District Government related structures on Government property created as part of...

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• Organization: District of Columbia
• Updated: 2021-12-08T17:02:36.000Z

Property lots in DC are identified by their Square Suffix Lot number (SSL). SSL are 12 characters in length. The first 4 characters are your Square. The middle 4 characters, if present, are your...

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• Organization: District of Columbia
• Updated: 2026-02-17T22:00:01.000Z

The tax assessment roll public extract (ITSPE) is used for assessment and property analysis, to send property tax bills and notices, and stores comprehensive tax information such as ownership,...

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• Organization: District of Columbia
• Updated: 2026-02-14T11:42:55.000Z

This layer is derived from the Common Ownership Lots and represents property transactions as they’ve occurred since the implementation of the Vector Property Mapping program in September 2006. A...

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• Organization: District of Columbia
• Updated: 2026-02-14T11:42:55.000Z

The Regimes are how Office of Tax and Revenue (OTR) quantifies units in a given condo development, grouping of condos. A condo regime number is assigned to each residential condo application or...

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• Organization: District of Columbia
• Updated: 2026-02-18T10:41:57.000Z

The common ownership lots is a single polygon layer that is built from various polygon feature classes of the District's Vector Property Mapping database including the below. It represents all...

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• Organization: City of Chicago
• Updated: 2026-02-21

Sensors deployed throughout the City by Open Air Chicago measuring fine particulate matter 2.5 (PM2.5) and nitrogen dioxide (NO2). All sensors collect data on PM2.5 and NO2. Six sensors also...

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• Organization: District of Columbia
• Updated: 2024-08-22T13:25:33.000Z

The interactive zoning map allows users to determine the zoning classification for any property in the District. Users can search zoning by specific address, square and lot, parcel, Zoning...

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• Organization: City of Chicago
• Updated: 2026-02-21

Sensors deployed throughout the City by Open Air Chicago measuring fine particulate matter 2.5 (PM2.5) and nitrogen dioxide (NO2). All sensors collect data on PM2.5 and NO2. Six sensors also...

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• Organization: Department of State
• Updated: 2003-01-01

The Office of the Legal Adviser publishes the annual Digest of United States Practice in International Law to provide the public with a historical record of the views and practice of the...

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• Organization: Department of the Interior
• Updated: 2025-05-14T16:20:52Z

In Figure 4 on page 20 of the INDIAN AFFAIRS NATIONAL ENVIRONMENTAL POLICY ACT (NEPA) GUIDEBOOK 59 IAM 3-HDIVISION OF ENVIRONMENTAL AND CULTURAL RESOURCES MANAGEMENT AUGUST 2012lists the principle...

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