Datasets
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Alley Frontage Lines
Alley widths, street frontages, were captured during the vector property effort and reside in their own feature class. 99% of the time, these features should be coincident with... -
Air Rights Lots (Historical)
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... -
Air Rights Lots
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... -
Air Rights Lot Points
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... -
Appropriations
U.S Appropriations are lands set aside at the time of the original founding and platting of the city for use by the U.S. Federal Government. The White House, for instance,... -
Appropriation Points
Appropriation points. U.S Appropriations are lands set aside at the time of the original founding and platting of the city for use by the U.S. Federal Government. The White... -
Building Restriction Lines
These are lines beyond which property owners or others have no legal or vested rights to extend a building or any part thereof without approval of the proper authorities;... -
Condo One to Many
The table represents documentation (Book & Page) approved for condominium development. Projects can be built in multiple phases and thus the potential for several condo... -
District Government Land Points
District addresses for the District Land. The dataset contains of addresses for the District land (Owned, Operated, and Maintained), created as part of the DC Geographic... -
District Government Land Line Dimensions
District Government Land Line Dimensions. A layer showing District of Columbia government related properties (owned, operated, and or managed) to be used by many DC Government... -
District Government Owned Structures
A layer showing the District of Columbia government related structures. The dataset contains polygons representing District Government related structures on Government property... -
Owner Lot Line Dimensions
The dataset contains locations and attributes of owner lines with dimensions. The tax information (attribution) comes from the Office of Tax and Revenue's Public Extract file.... -
Square Boundaries
Squares are calculated by the outer extents of the record or tax lots within a defined area (typically a city block). There are roughly 4896 active squares. A Square is similar... -
Square Points
Squares are calculated by the outer extents of the record or tax lots within a defined area (typically a city block). There are roughly 4896 active squares. A Square is similar... -
Parcel Lots (Historical)
These are lands still within the District of Columbia that has never been subdivided into either Record or Tax Lots through the two offices that manage land records (OS &... -
Parcel Lots
These are lands still within the District of Columbia that has never been subdivided into either Record or Tax Lots through the two offices that manage land records (OS &... -
Parcel Lot Points
These are lands still within the District of Columbia that has never been subdivided into either Record or Tax Lots through the two offices that manage land records (OS &... -
Land Boundary Change
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... -
Record Lots (Historical)
Record lots are defined by the Department of Buildings (DOB) – Office of the Surveyor (OS) - DC Surveyor. They are official, platted, recorded subdivision lots created by the... -
Record Lots
Record lots are defined by the Department of Buildings (DOB) – Office of the Surveyor (OS) - DC Surveyor. They are official, platted, recorded subdivision lots created by the...