Description

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This dataset was retired in 2014. Please refer to the common ownership polygon layer in http://data.dc.gov for the most current data on ownership.Property Owner Points. This dataset contains points that represent the approximate location of real property lots within the District of Columbia. Each property point is generated based on a corresponding record maintained within the Office of Tax and Revenue (OTR) Real Property Tax Administration's (RPTA) real property database. Each point contains the full attribution of database fields derived from ITS public release extract. The initial data conversion effort was begun in 1997 as a means to provide RPTA with a digital mapping system which could be maintained to reflect ongoing changes to property lots and ownership. The initial step was to scan RPTA tax square maps from aperture cards at an effective paper resolution of 400 DPI. The resulting images were then georeferenced to DC's 0.2-meter resolution 1995 digital orthophotos. During the georeferencing process, the images were not warped; they were simply scaled and rotated to best fit the orthophotos. The DC tax assessor provided a database of active tax accounts which were placed interactively by an operator using the georeferenced square image and the orthophoto. Centroids were placed on the primary structure visible in the orthophoto within the raster property polygon. The placement was performed within ArcView 3.2 using a customized data production application. Accounts which could not be placed in the first pass were then reviewed by another operator to attempt to find their correct location. The placed points were QC'd through a spatial overlay with the square index to assure a match between the "square" field value within the property database and the actual square polygon into which the point was placed. Spot checking was then performed to confirm that the centroids fell within the correct raster lot. The centroids were delivered to OTR as a single citywide AutoCAD DWG file. Attribute features with square, suffix, and lot numbers (SSLs) were included as an AutoCAD block. All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters. METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE.

Dataset Attributes

  • Shape
    Number
  • SSL
    Text
  • SQUARE
    Text
  • SUFFIX
    Text
  • LOT
    Text
  • ARN
    Text
  • ASRNAME
    Text
  • PROPTYPE
    Text
  • TRIGROUP
    Text
  • USECODE
    Text
  • LANDAREA
    Number
  • PREMISEADD
    Text
  • NBHD
    Text
  • SUBNBHD
    Text
  • UNITNUMBER
    Text
  • OWNERNAME
    Text
  • CAREOFNAME
    Text
  • ADDRESS1
    Text
  • ADDRESS2
    Text
  • CITYSTZIP
    Text
  • BASELAND
    Number
  • BASEBUILD
    Number
  • OLDLAND
    Number
  • OLDIMPR
    Number
  • OLDTOTAL
    Number
  • NEWLAND
    Number
  • NEWIMPR
    Number
  • NEWTOTAL
    Number
  • PHASELAND
    Number
  • PHASEBUILD
    Number
  • PHASECYCLE
    Text
  • PARTPART
    Text
  • VACLNDUSE
    Text
  • LOWNUMBER
    Text
  • HIGHNUMBER
    Text
  • STREETNAME
    Text
  • STREETCODE
    Text
  • QDRNTNAME
    Text
  • DELCODE
    Text
  • HSTDCODE
    Text
  • CLASSTYPE
    Text
  • TAXRATE
    Number
  • MIXEDUSE
    Text
  • MIX1TXTYPE
    Text
  • MIX1CLASS
    Text
  • MIX1RATE
    Number
  • MIX1LNDPCT
    Number
  • MIX1LNDVAL
    Number
  • MIX1BLDPCT
    Number
  • MIX1BLDVAL
    Number
  • MIX2TXTYPE
    Text
  • MIX2CLASS
    Text
  • MIX2RATE
    Number
  • MIX2LNDPCT
    Number
  • MIX2LNDVAL
    Number
  • MIX2BLDPCT
    Number
  • MIX2BLDVAL
    Number
  • OWNOCCT
    Number
  • COOPUNITS
    Number
  • PCHILDCODE
    Text
  • ABTLOTCODE
    Text
  • SALEPRICE
    Number
  • SALEDATE
    Date
  • ACCEPTCODE
    Text
  • SALETYPE
    Text
  • DEEDDATE
    Date
  • ASSESSMENT
    Number
  • ANNUALTAX
    Number
  • DUEDATE1
    Text
  • AMTDUE1
    Number
  • DUEDATE2
    Text
  • AMTDUE2
    Number
  • DUEDATE3
    Text
  • AMTDUE3
    Number
  • TOTDUEAMT
    Number
  • TOTCOLAMT
    Number
  • TOTBALAMT
    Number
  • EXTRACTDAT
    Date
  • DEEDSTATUS
    Text
  • CAPCURR
    Number
  • CAPPROP
    Number
  • REASONCD
    Text
  • TXSALEDESC
    Text
  • CLASS3
    Text
  • CLASS3EX
    Number
  • CY1YEAR
    Text
  • CY1TXSALE
    Text
  • CY1TAX
    Number
  • CY1PEN
    Number
  • CY1INT
    Number
  • CY1FEE
    Number
  • CY1TOTDUE
    Number
  • CY1COLL
    Number
  • CY1BAL
    Number
  • CY1CR
    Number
  • CY2YEAR
    Text
  • CY2TXSALE
    Text
  • CY2TAX
    Number
  • CY2PEN
    Number
  • CY2INT
    Number
  • CY2FEE
    Number
  • CY2TOTDUE
    Number
  • CY2COLL
    Number
  • CY2BAL
    Number
  • CY2CR
    Number
  • PY1YEAR
    Text
  • PY1TXSALE
    Text
  • PY1TAX
    Number
  • PY1PEN
    Number
  • PY1INT
    Number
  • PY1FEE
    Number
  • PY1TOTDUE
    Number
  • PY1COLL
    Number
  • PY1BAL
    Number
  • PY1CR
    Number
  • PY2YEAR
    Text
  • PY2TXSALE
    Text
  • PY2TAX
    Number
  • PY2PEN
    Number
  • PY2INT
    Number
  • PY2FEE
    Number
  • PY2TOTDUE
    Number
  • PY2COLL
    Number
  • PY2BAL
    Number
  • PY2CR
    Number
  • PY3YEAR
    Text
  • PY3TXSALE
    Text
  • PY3TAX
    Number
  • PY3PEN
    Number
  • PY3INT
    Number
  • PY3FEE
    Number
  • PY3TOTDUE
    Number
  • PY3COLL
    Number
  • PY3BAL
    Number
  • PY3CR
    Number
  • PY4YEAR
    Text
  • PY4TXSALE
    Text
  • PY4TAX
    Number
  • PY4PEN
    Number
  • PY4INT
    Number
  • PY4FEE
    Number
  • PY4TOTDUE
    Number
  • PY4COLL
    Number
  • PY4BAL
    Number
  • PY4CR
    Number
  • PY5YEAR
    Text
  • PY5TXSALE
    Text
  • PY5TAX
    Number
  • PY5PEN
    Number
  • PY5INT
    Number
  • PY5FEE
    Number
  • PY5TOTDUE
    Number
  • PY5COLL
    Number
  • PY5BAL
    Number
  • PY5CR
    Number
  • PY6YEAR
    Text
  • PY6TXSALE
    Text
  • PY6TAX
    Number
  • PY6PEN
    Number
  • PY6INT
    Number
  • PY6FEE
    Number
  • PY6TOTDUE
    Number
  • PY6COLL
    Number
  • PY6BAL
    Number
  • PY6CR
    Number
  • PY7YEAR
    Text
  • PY7TXSALE
    Text
  • PY7TAX
    Number
  • PY7PEN
    Number
  • PY7INT
    Number
  • PY7FEE
    Number
  • PY7TOTDUE
    Number
  • PY7COLL
    Number
  • PY7BAL
    Number
  • PY7CR
    Number
  • PY8YEAR
    Text
  • PY8TXSALE
    Text
  • PY8TAX
    Number
  • PY8PEN
    Number
  • PY8INT
    Number
  • PY8FEE
    Number
  • PY8TOTDUE
    Number
  • PY8COLL
    Number
  • PY8BAL
    Number
  • PY8CR
    Number
  • PY9YEAR
    Text
  • PY9TXSALE
    Text
  • PY9TAX
    Number
  • PY9PEN
    Number
  • PY9INT
    Number
  • PY9FEE
    Number
  • PY9TOTDUE
    Number
  • PY9COLL
    Number
  • PY9BAL
    Number
  • PY9CR
    Number
  • PY10YEAR
    Text
  • PY10TXSALE
    Text
  • PY10TAX
    Number
  • PY10PEN
    Number
  • PY10INT
    Number
  • PY10FEE
    Number
  • PY10TOTDUE
    Number
  • PY10COLL
    Number
  • PY10BAL
    Number
  • PY10CR
    Number
  • LASTPAYDT
    Date
  • OWNNAME2
    Text
  • OBJECTID
    Number
  • X_COORD
    Number
  • Y_COORD
    Number

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