Treeby is the City of Cockburn’s newest suburb. It is located on the east side of the Kwinana Freeway, close to Cockburn Central.

About Treeby

Treeby is primarily a rural area, originally part of the Banjup locality. In recent years, an area previously mined for sand was developed into a new residential estate called Calleya.

Proposals being advertised

Where planning proposals in this area are still being advertised, you can view them on our Comment on Cockburn webpage.

Calleya Estate

Calleya Estate covers the Stockland-owned section of Treeby. The Calleya Estate Structure Plan outlines the proposed framework and form of residential development, community and educational facilities, pedestrian connections and land uses in this area.  


More information and contact

Please contact the Strategic Planning for more information on Treeby on 08 9411 3444
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9 Coleville Crescent,
Spearwood 6163

Po Box 1215, Bibra Lake DC,
Western Australia, 6965

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