Parcel split: split using a measurement description and point of beginning

This topic applies to ArcGIS for Desktop Standard and ArcGIS for Desktop Advanced only.

Complexity: Beginner Data Requirement: Local Government Sample Data Data Path: \TaxParcelEditingMap\MapsandGeodatabase\ Goal: Learn how to split acreage parcels using a measurement description and point of beginning in the Local Government Information model for ArcGIS

When the parcel fabric is enabled with the Local Government Information Model, efficient and automated workflows can be used to perform common parcel editing tasks such as a parcel merge and a parcel split. This workflow describes the steps for the Parcel Split: Metes-And-Bounds automated workflow.

The workflow uses the sample dataset that is downloaded with the Tax Parcel Editing map on the ArcGIS Resources website. To use the automated workflows on the sample data, enable the parcel fabric in the sample data with the Local Government Information Model.

Learn how to migrate parcel data to the parcel fabric schema in the Local Government Information Model.

The workflow consists of the components shown in the diagram below:

Components for a parcel split using measurements

Legal description

A legal description for a parcel split using measurements and a point of beginning may look like this:

Commencing at the northwest corner of lot 15, Echo Park No. 1 the following courses, N4°21'50"W 365 ft. and N87°09'54"E 49.0 ft. to the true point of beginning, thence along a private road N5°47'00"W a distance of 250 ft., thence N87°09'54"E a distance of 295 ft., thence S1°38'34"W a distance of 250 ft., thence S87°04'00"W a distance of 262.62 ft. to the true point of beginning.

Search for parent parcels

Steps:
  1. Open the TaxParcelEditingMap document located in the MapsandGeodatabase folder.
  2. In the Table Of Contents window, make only the Tax Parcels layer and the Tax Lines Anno layer selectable.
  3. Make sure that the Lots and Units layer and the Lines sublayer (under the Parcel Fabric group layer) is visible.
  4. For this workflow using the sample data, the visibility of the Historic Parcels layer has been turned off.

  5. Using the parcel plan, search for the parent parcel that will be split. In the sample data, search and zoom to the parcels in the Echo Park No 1 plan and locate lot 15.

Locate point of beginning or commencement point

You can snap to existing parcel points or existing control points in the parcel fabric and use them as points of beginning. It may be necessary to enter additional lots or add control points if the points you need to use do not exist in the fabric. In the workflow, the point of beginning is the corner of lot 15 in the Echo Park No. 1 subdivision.

Enter new parcels

Enter the measurements stated in the legal description, starting at the north-west parcel corner of lot 15:

Steps:
  1. Click New Parcel New Parcel on the Parcel Editor toolbar.
  2. On the Parcel Details dialog box under the Properties tab, leave the Plan set to the system default <map> plan.
  3. The parcel fabric plan represents the legal document recording a parcel merge, subdivision, and so on. Parcels are created in plans. Plans are managed in the Plan Directory dialog box, which is opened by clicking Plan on the Parcel Details dialog box.

    TipTip:

    When setting the Accuracy category for a plan, all parcels in the plan will inherit that accuracy value.

  4. Click Template to open the Select Feature Template dialog box and choose the Tax Parcels feature template for the new split parcels.
  5. Click the Lines tab to enter the parcel dimensions.
  6. Click to snap on the north-west corner of lot 15 to add it as the first from point in the Lines grid.
  7. Snap to point of beginning
  8. Click under the Template field and choose the Origin Connection to POB line template.

    The template field name is initially collapsed to a single icon. You can expand the field to display the field name, which is Template.

  9. Setting a parcel line template

    NoteNote:

    Line templates are only available if the Lines sublayer in the Table Of Contents window is visible.

  10. Click the Bearing field and type 4-21-50-4 (-4 is the NW quadrant-bearing shortcut).
  11. Press ENTER to move to the Distance field and type a distance of 365. Press ENTER to move to the next row in the Lines grid.
  12. Data entry in the lines traverse grid is designed to work with the 10-key pad, where you can use a single hand to enter dimensions. Use quadrant-bearing shortcuts and press the ENTER key and ARROW keys to move between cells.

    Learn more about shortcuts in the Lines grid

  13. For the second traverse leg, leave the line template set to Origin Connection to POB and type a bearing of 87-09-54-1 (-1 is the NE quadrant-bearing shortcut) and a distance of 49.
  14. For the third traverse leg, set the line template to Standard Boundary, and type a bearing of 5-47-0-4 and a distance of 250.

    The Standard Boundary line template will be used for the remaining traverse legs.

  15. For the fourth traverse leg, type a bearing of 87-09-54-1 and a distance of 295.
  16. For the fifth traverse leg, type a bearing of 1-38-34-3 (-3 is the SW quadrant-bearing shortcut) and a distance of 250 feet.
  17. For the sixth and final traverse leg, type a bearing of 87-04-00-3 and a distance of 262.62 feet.
  18. The to point of the final traverse leg automatically snaps to the to point of the third traverse leg. From and to points automatically snap or close onto each other if the points lie within the line grid closure tolerance. You can set the line grid closure tolerance under Closure on the Tolerances tab on the Parcel Editor Options dialog box (Parcel Editor > Options).
    Lines grid on the Parcel Details dialog box

    TipTip:

    The misclose of the parcel is displayed at the bottom of the Parcel Details dialog box. Large miscloses indicate a possible blunder in the entered dimensions.

Join and align new parcels

When new parcels are added to the parcel fabric, they need to be joined to the parcel fabric to become part of the parcel fabric layer. A newly created parcel is not yet connected to the parcel fabric layer, even if existing fabric points were used as from- or to-points in the creation of the parcel. New parcels need to be joined to the parcel fabric to be connected to the parcel fabric.

Parcel joining is an interactive process where the parcel points of a floating parcel or group of parcels are matched with their corresponding points in the parcel fabric.

Steps:
  1. Click Keep And Join Save And Join on the Parcel Details dialog box.

    Close or dock the Parcel Details dialog box.

  2. On the Join Parcel dialog box, choose Joining points held fixed at map position under Use the following method when I click OK.

    Since dimensions on the legal description were used to enter this parcel, you will assume, for the workflow, that the new parcel is more accurate than the surrounding parcels. Surrounding parcels are aligned to the new parcel rather than aligning the new parcel to the surrounding parcels.

  3. When joining a parcel using the Joining points held fixed at map position option, you can use the RotateRotate joining parcel, Scale Scale joining parcel, or Scale and rotate joining parcel Scale and rotate joining parcel tools to scale and rotate the parcel. You can also use the mouse cursor to drag the parcel to a new position.

    Since the parcel has been snapped to a point of beginning, it will not be repositioned in the workflow.

  4. Use the Create Join Link tool Create Join Link on the Join Parcel dialog box to join the from point of the first origin connection line to the existing point of beginning in the parcel fabric.

    Click Create Join Link and drag a box around these two points. Since the from point of the origin connection line is snapped to the point of beginning in the fabric, these points overlap.

  5. Once the join link is established, the joining parcel vertex changes to a linked vertex.

    Create a join link

  6. Use the Trace fabric to create join links tool to join points on the parcel to their corresponding points in the parcel fabric:
    1. Click Trace fabric to create join links and change the Trace buffer to 10 feet.
    2. Click the northwest corner of the joining parcel, and trace a line to the southwest corner, then to the southeast corner. Click to finish tracing.
    3. Click Create Links to join the points in the trace buffer.
  7. Trace buffer

    Join residuals are displayed in the Join Parcel dialog box as join links are created. Join residuals are an indication of how well the parcels being joined fit with the surrounding parcels. In the workflow, residuals are slightly high because the parcel being joined has more accurate dimensions than the surrounding parcels. Because the joining parcel is being held fixed, surrounding parcels are fitted to the joining parcel, and the accuracy of the joining parcel is preserved.

    NoteNote:

    In the workflow, join links are not created between the points on the origin connection lines and points in the parcel fabric. There is no indication in the legal description that the origin connection line should follow the boundaries of existing parcels.

  8. Click OK on the Join Parcel dialog box to join the new parcel to the parcel fabric using the join links.

Split existing parcel

The newly joined parcel is used to split and create a parcel remainder from existing tax parcel 1917426001:

Steps:
  1. Use the selection chip to select the newly joined parcel, right-click and click Parcel Remainder.
  2. On the Remainder dialog box, leave the plan set to the system default <map> plan for the workflow.
  3. TipTip:

    When working with your own data, you would click Plan to choose or create the plan that represents the new parcel.

  4. Click Template and choose the Tax Parcels feature template from the Select Feature Template dialog box.
  5. Choose parcel 1917426001 to create a remainder for and click OK to create the remainder parcel.

    Attributes from parent parcel 1917426001 will be transferred to the remainder parcel.

  6. Parcel remainder

    Parent parcel 1917426001 is saved and flagged as historic.

    TipTip:

    To view historic parcels, turn on the Historic Parcels layer in the Table Of Contents window.

Annotate parcels

Steps:
  1. Make sure the Tax Lines Anno layer is turned on in the Table Of Contents window.
  2. In the TaxParcelEditingMap document, new annotation is not automatically created when new parcels are added.

    Learn more about annotation in the TaxParcelEditingMap document

    Annotation is created using the Annotate Parcel Courses tool Annotate Courses, which handles the duplication of annotation on parcel lines.

  3. With the new parcel and the remainder parcel selected, click the Annotate Parcel Courses tool Annotate Courses on the Parcel Editor toolbar.
  4. Select ParcelDimensions - 1:1200 on the Annotate Selected Features dialog box and click OK.

    Click Yes to re-create annotation.

  5. If necessary, use the Edit Annotation tool Edit Annotation Tool to edit and change the placement of the generated annotation.

Attribute parcels

The final step in the workflow is to update the attributes of the new parcels:

Steps:
  1. Use the selection chip to select the new parcel and the remainder parcel and open the Attributes window.
  2. Select a parcel from the parcel list under Tax Parcels and update attributes such as the Parcel Identification Number, StatedArea, LegalStartDate, and Accuracy.

    The LegalStartDate attribute should correspond to the date on the parcel's plan. If the Accuracy attribute is left empty, the value is inherited internally from the plan accuracy. You can override the plan accuracy by specifying a different parcel accuracy. Accuracy values are used in the parcel fabric least-squares adjustment.

  3. Update the attributes of the next parcel in the list.
  4. NoteNote:

    You can also updated the attributes of a single, selected parcel under the Properties tab of the Parcel Details dialog box.

  5. Optionally update the attributes of the historic parcels:
    1. Turn on the Historic Parcels layer in the Table Of Contents window.
    2. Use the selection chip to select the historic parcel in the map.
    3. Open the Parcel Details dialog box and update attributes such as LegalStartDate, LegalEndDate, and Reason Parcel Retired.
1/25/2013