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 recording the spatial relationship between boundaries in a clear and unambiguous manner in a CSD.

Recording boundary relationships

Depiction of the spatial relationships between boundaries [r 9.6.3(f) and (g)] is primarily through the pictorial display of the boundaries in diagrams.

The diagrams must depict all of the boundaries that are relevant and display the relationship between them.  This applies in a horizontal and vertical context. The boundaries cannot be shown in isolation or not shown and merely referenced to preceding CSDs.

The spatial relationships must be clear and unambiguous [r 9.6.15(a) and r 10.4.10(a)].  Cross-sections are often an appropriate method of depicting the relationship between stratum boundaries or between upper and lower permanent structure boundaries.

The depiction of boundaries in a plan graphic [r 9.6.9] without dimensions is all that is necessary where there is a mixture of permanent structure boundaries, and mathematically described boundaries (eg right lines or reduced levels), and the relationship between the boundaries is clear and unambiguous.

Note, where there is a risk of a boundary overlap or where the gap between two boundaries is not clear and unambiguous, more information is required [r 9.6.9(b)].  In some cases, this could be horizontal or vertical dimensions.

Read about how to depictthe relationship of unit and cross lease boundaries where they are close

Last Updated: 31 March 2017
Authority: Surveyor-General - Section 7(1)(ga) of the Cadastral Survey Act 2002
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