Treeby is the City of Cockburn’s newest suburb. It is located on the east side of the Kwinana Freeway, close to Cockburn Central.
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.
Where planning proposals in this area are still being advertised, you can view them on our Comment on Cockburn webpage.
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.