Note: this guideline is issued by the Surveyor-General under section 7(1)(ga) of the Cadastral Survey Act 2002 about the Rules for Cadastral Survey 2010 and is not legally binding.

The following information relates to defining existing class A boundaries or boundary points on new primary parcels, less than 0.4 ha in area, under rule 6.2(a)(iv) and 6.2(c).

When class A boundaries on parcels under 0.4 ha must be defined by survey

All existing Class A boundaries or boundary points on a primary parcel less than 0.4 ha must be 'defined by survey' unless:

When class A boundaries on parcels under 0.4 ha may be defined by adoption

Existing class A boundaries or boundary points on a primary parcel less than 0.4 ha may be 'defined by adoption' where:

  • the parcel contains (coincides with) 90 % or more of the parcel being extinguished by the survey providing the accuracy tolerances are able to be met [r 6.2(a)(iv)].  

    ​Examples where this could occur are:
    • a boundary adjustment survey (refer to Figure 1: Example of a boundary adjustment survey below), or 
    • a land acquisition survey (refer to Figure 2: Example of a land acquisition survey below).
       
  • all of the boundaries are existing primary parcel boundaries defined in approved CSDs (refer below to Applying rule 6.2(c)(ii)).
Figure 1: Example of a boundary adjustment survey
Figure 2: Example of a land acquisition survey

Applying rule 6.2(c)(ii)

All existing boundaries and boundary points may be defined by adoption on a new primary parcel less than 0.4 ha where:

  • all the boundaries are existing primary parcel boundaries defined in approved CSDs (including boundaries defined on CSDs that have not deposited, and boundaries in approved CSDs that have been superseded and are no longer existing boundaries in the spatial cadastre), and
  • all the boundaries are right-lines or arcs, and 
  • all the boundary points meet the class A accuracy standards in r 3.3.1(a)(ii). 

Examples where the criteria could be met include:

  • two or more existing parcels being combined to create a single new parcel (refer to Figure 3: Example of class A adopted boundary points below), or
  • a new parcel having the same boundaries as the extinguished parcel.  This will occur when the purpose of the CSD is to create a new appellation for an existing parcel or where an amalgamation condition is being severed.
Figure 3: Example of class A adopted boundary points

Where all boundaries are adopted, refer to Current CSD type where data is adopted.

A new boundary calculated between existing boundary points does not meet the criteria in rule 6.2(c)(ii) and therefore all boundaries of that parcel must be defined by survey (refer to When class A boundaries on parcels under 0.4 ha must be defined by survey above).

Class A boundary points of abutting parcels

A boundary point is not required to be defined by survey if it is on a primary parcel less than 0.4 ha and it only defines the end point of an abutting parcel boundary [r 6.2(c)(i)].

Irrespective of the above, a boundary point must be defined by survey under rule 6.2 if it is:

  • an angle on the new parcel and does not fit the exception set out in rule 6.2(a)(iv),
  • an angle on a new primary parcel boundary that was previously only a non-primary parcel boundary point [6.2(a)(xii)],
  • a boundary point marked by the survey [6.2(a)(v)],
  • an old boundary mark that has been connected to by the survey [6.2(a)(v)].
Figure 4: Example of class A abutting boundary point
Last Updated: 31 March 2017
Authority: Surveyor-General - Section 7(1)(ga) of the Cadastral Survey Act 2002
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