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 rule 3.5 and the accuracy requirements for boundaries defined by reference to permanent structures.

A permanent structure boundary may be coincident with a permanent structure or may be a line in space referenced to a permanent structure (ie a non-coincident permanent structure boundary).

The accuracy of a permanent structure boundary relies entirely on the accuracy of its relationship with the permanent structure.

Accuracy of underlying parcel boundaries where new permanent structure boundary

Where a new permanent structure boundary is being defined, the underlying parcel boundaries may be defined by adoption.

Note that if the permanent structure boundary is within 1 m of another boundary (class A) or 3 m (class B) and the relationship between the two boundaries cannot be accurately obtained (refer rule 3.5), the underlying parcel boundary may need to be defined by survey.

Accuracy of a non-coincident permanent structure boundary

Where the permanent structure boundary is not coincident with the permanent structure, the boundary must be witnessed by a clearly identified point on the structure [r 3.5(a)] and the relationship between the boundary point and this 'witness point' must comply with the accuracy specified in rule 3.6 [r 3.5(b)].

These requirements do not apply to boundaries of existing units and common property defined under prior rules where no changes are being made to the parcel boundaries, appellation, and title (refer to rule 19).

Diagram showing accuracy standard for non-coincident permanent structure boundary
Figure 1: Accuracy standard for non-coincident permanent structure boundary

Accuracy of permanent structure boundaries close to another boundary

The accuracy between a permanent structure boundary and another boundary must comply with the accuracy specified in rule 3.3 where the boundaries are close to each other [r 3.5(c)]

Refer to depicting the relationship of unitand cross lease areas to primary parcel boundariesin CSD diagrams 

Refer to depicting the relationship of unit and cross lease boundaries where they are close

These requirements do not apply to boundaries of existing units and common property defined under prior rules where no changes are being made to the parcel boundaries, appellation and title (refer to rule 19).

Diagram showing accuracy requirements between boundary points of permanent structure boundary and any other boundary
Figure 2: Accuracy requirements between boundary points of permanent structure boundary and any other boundary
Last Updated: 29 March 2017
Authority: Surveyor-General - Section 7(1)(ga) of the Cadastral Survey Act 2002
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