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Urban Property Street Addressing in Western Australia


Existing addresses shall not be affected by the adoption of the requirements and guidelines found in urban addressing. This standard does not preclude any local government from the re-numbering or changing of addresses.

The objective of urban addressing is to provide clear and unambiguous information to users in order to assist them in reaching their desired destination within an urban setting.

The following principles apply to urban addressing:
(a) Landgate: The custodial responsibility of Landgate is to fulfill the ongoing maintenance, accuracy and quality of data for a state-wide addressing database.
(b) Local governments: Local governments shall maintain responsibility for addressing and support address numbering integrity by applying this standard and these guidelines consistently and to the extent approved by the local government.
(c) Spirit of cooperation: A spirit of cooperation should exist among local governments, the State agency, emergency services, local communities, local industries and all other entities involved in urban addressing.

Methodology and Processes

1. Early Numbering Process

Step 1

The surveyor submits a pre-cal and associated reference data with Landgate Geographic Names Section for road numbering and naming advice where required;

Step 2

Landgate reviews the plan and accesses LIA to determine adjoining numbers and associated road patterns.

A copy of the plan with adjoining numbers is referred back to the surveyor. Alternatively, the surveyor requests Landgate to number the sub-division plan on a fee for service basis.

Step 3

The Surveyor or Landgate apply the guidelines to numbering the subdivisional plan ensuring that all local government rules applicable to the particular local government are met. Where Landgate has numbered the plan on the surveyor's behalf, it is then referred back to the surveyor.

Note: The methodology used for property street addressing is contained in AS4819:2003. A concise set of procedures is included in this document as Appendix A.

Step 4

Surveyors include street numbers in CSD file and lodges with Landgate;

Step 5

Landgate plots the appropriate plan with addresses including:
    • lot number;
    • plan number;
    • street name; and
    • street number;
    • Landgate forwards plot and/or DGN/DXF/PDF file to the local government.
Step 6

Where the local government determines that extra information is required it may request supporting documentation from the Developer. If no further information is required, go to Step 8.

Step 7

Developer/surveyor to forward support documentation to local government;

Support documentation may include:
    • local government city centre maps;
    • road name plans;
    • engineering design plans;
    • ‘R’ code maps and text;
    • relevant recent number requests.

Step 8

Local government reviews the numbering and approves the plan as submitted, or with their changes. LG forwards plan/file to Landgate.

Step 9

Landgate reviews LG plan and makes any changes to address data base. Landgate notifies surveyor and other authorities of address allocation.

2. Change Management Process

2.1 Design changes affecting road names and/or street addresses will require surveyors to recommence the early addressing process.

2.2 Local government advises Landgate of minor changes to street numbers monthly (refer to Form A)

2.3 Landgate advises other agencies of minor street number changes.

The procedures of Change Management Process including:

View Early Numbering process - (52 kb)

View Change Management Processes - (47kb)
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3. Glossary of Terms and Acronyms

Cadastral Survey Data (CSD) file
The CSD file records the points, lines, angles and polygons of a survey plan/diagram lodged at Landgate.

Digital Survey Lodgement (DSL) System
A PC based computer system used to facilitate the Lodgement of survey plans/diagrams into Landgate using the information contained in the CSD.

Landgate
The Landgate. The Western Australian Government Department with custodian responsibility for property street address.

GEONOMA
GEONOMA is Landgate’s computerised gazetteer of road and feature names for Western Australia. It is maintained on a daily basis to include all new and amended road and locality names in the state.

Land Information Access (LIA)
LIA is a Landgate computer system for the viewing of land ownership and spatial definitions.

Local Governments
Any local government listed in the Western Australian Municipal Directory whether City, Shire or Town.

Pre-Calculation Plans (Pre-cal)
A design plan showing, dimensions, lot numbers and road names. This is the base plan from which survey plans are prepared for Lodgement at Landgate.

‘R’ Codes
The following extract from the Town Planning & Development Act 1928, Statement of Planning Policy No. 1 (as amended 1991) refers to Residential Planning Codes (‘R’ codes):
2. All town planning schemes prepared and adopted by local authorities under the provisions of the Town Planning and Development Act 1928 which provide for the zoning and allocation of land shall require residential development in zones where residential development is permitted to be subject to the controls contained in the Residential Planning Codes.

The Applicant
The Applicant is the land developer or person authorised by the land developer to act on his/her behalf.

Western Australian Land Information System (WALIS)
The Western Australian Land Information System (WALIS) is the Western Australian Government's mechanism for coordinating the management of its land and geographic or spatial information. WALIS is a consortium of more than twenty eight agencies, each with an interest in managing land or geographic information.
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4. Local Procedures for the allocation of Urban Street Numbers

4.1 CITY OF ARMADALE

In the City of Armadale, odd numbers are allocated to the right hand side of the road and even numbers allocated to the left hand side of the road.

4.2 TOWN OF BASSENDEAN

A house number is not allocated to a “padmount site”.
In the case of a small cul-de-sac, ie 8 dwellings or less, only even numbers are used.

4.3 TOWN OF CAMBRIDGE

Where subdivisions of lots occur in order to create smaller lots or strata title lots, the original lot becomes known as the original number followed by the letter A and the subsequent lots with the letter B,C,D etc (eg. house 3 Smith Road subdivided becomes 3A and 3B). The Council uses this as a method to identify lots that have been subdivided or strata titled.
Where minor streets intersect and crossover several major streets, Council adopts the policy that street numbering on these minor streets commence at the southern most point of the minor street.

4.4 CITY OF CANNING

In the City of Canning, odd numbers are allocated to the right hand side of the road and even numbers allocated to the left hand side of the road.

4.5 CITY OF GOSNELLS

In the City of Gosnells, odd numbers are allocated to the right hand side of the road and even numbers allocated to the left hand side of the road.

4.6 SHIRE OF KALAMUNDA

The Shire of Kalamunda allocated house numbers which are corresponding to the house number opposite for loop roads as indicated in the example below:

View image for allocationg house numbers on loop roads - (36 kb)

4.7 CITY OF MELVILLE

The City of Melville has a policy for street numbering, and will allocate new street numbers to all properties shown on any deposited plan sent by a surveyor seeking clearance of subdivisional conditions. When numbers are allocated a copy of the plan is sent to the surveyor and Landgate.
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4.8 TOWN OF MOSMAN PARK

System / House Numbers
Streets located in an east-west direction are to be numbered with house no. 1 at the west end on the north side.
Streets located in a north-south direction are to be numbered with house no. 1 at the north end of the east side.
Cul-de-sacs are to be numbered consecutively.
Duplex and Triplex Units
A normal house number allocation is to be made for duplex and triplex units with each internal unit being designated A & B or A, B & C. In circumstances considered appropriate by the Council, at their discretion, and on application from the owner/owners, the Council may assign individual house numbers to duplex and triplex units.
Townhouses and Flats
A normal house allocation is to be made for townhouses and flats with each internal unit being numbered Unit 1, Unit 2 etc.
Battleaxe Subdivisions
The front block is to retain the normal house number allocation with the rear lot being designated A.
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4.9 CITY OF STIRLING

The City of Stirling has a policy for street numbering, and is able to offer early street numbering advice to surveyors. Contact person is Senior GIS Officer, 9345 8759.

4.10 CITY OF SWAN

If a subdivision first occurs in the middle section of what will eventually be a continuous street, an estimation should be made of the total number of lots likely to be created along the entire street, before allocating numbers for the section subdivided. One number should be allocated for each 10 metres of street frontage, and it is better to allocate too many numbers than too few.

Number 13 is not used in the City of Swan.

4.11 CITY OF WANNEROO

All house numbering in the City of Wanneroo is allocated at the time of WAPC final approval and advised to Landgate via monthly reports. The City can be approached for numbering assistance.
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5. Form A. - Advice of Minor Street Numbering Changes

This form is for the use of local governments to advise Landgate of changes to street numbers which will not be captured through the Digital Survey Lodgement process.

For example: Street renumbering and minor number changes brought about by road frontage changes, road design changes and unit developments etc.

The form should be lodged monthly with Landgate regardless of the number of changes made during the preceding month. A nil return is required.
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6. Form B. - PSA Amendment / Anomaly Notification Form

This form is for the use of Property Street Address data users to advise Landgate of anomalies which have been detected in Landgate’s PSA database.

On receipt of this information Landgate will undertake an investigation into the anomaly and:
    • Make adjustments to the database as required;
    • Notify the relevant local government.

Other agencies and data users will be notified of the changes via their PSA monthly maintenance uptake.

This form should be used as required and faxed to
Geospatial Maintenance – Names section, fax: 9273 7674
Western Australian Land Information Authority