A Young, Growing Population
The Western Australian population grew by 2.2% in the year ending December 2025 and was the fastest of all Australian States (source: Department of Treasury & Finance). The national growth rate for Australia in the same period was 1.5% (source: ABS).
Official WA Government population projections anticipate an average annual growth rate of 1.8% (source: WA Govvernment: Department of Planning, Lands and Heritage)
Treeby Population
Treeby has a rapidly growing population, due to attractive new development areas, new facilities new amenities and excellent proximity to shops, transport, hospitals and educational institutions.
The Treeby population doubled between 2016 and 2021 and is forecast to double again by 2028.
Housing Price Growth
WA’s housing market is not keeping pace with the State’s rapid population growth, which has tightened supply according to the Housing Affordability in Western Australia 2025 report (source: Bankwest Curtin Economics Centre).
Treeby has seen sales price growth of around 15.6% in the last 12 months to June 2026 (source: REIWA and realestate.com.au).
Solid Rental Returns
The median rental price is Treeby is currently around $820 – $850/week according to REA and REIWA. Rental price growth was reported to be around 9% in the last 12 months.
Strong Median Incomes
The median income of Treeby residents is well above the WA average.
Household Income
The 2021 Australian Bureau of Statistics (ABS) reports that the median weekly household income of Treeby residents is $2,479, or $129,000 per year. This is 37% and 42% higher than the median household income in WA ($1,815) and Australia ($1,746) respectively.
Almost four in ten Treeby households earn more than $3,000/week.
Personal Income
The median weekly personal income Is almost 50% higher than the Australian average at $1,197.
High Earning Potential
Treeby residents have better earning potential. A higher proportion are in the labour force, work full time and have a bachelor’s degree compared to both WA and Australia.
Three quarters of Treeby residents are in the labour force, which is more than 10% higher than WA (64%) and Australia (61%).
Two thirds work full time and this is around 10% more than the overall percentage for WA and Australia.
Nearly four in ten residents of Treeby have a Bachelor’s degree, which is also higher than WA (24%) or Australia (26%).
Location, Location, Location
- Transport. Lake Treeby has ideal transport options and is located just 3km from the freeway and train station. It’s just 24km to Perth city.
- Shops. Within 2km are South Central local shops and Tucker Fresh IGA. Within 3km is Cockburn Gateway Shopping City, which has over 170 stores.
- Schools. Treeby Primary School opened in 2022 and Piara Waters Senior High School opened in late 2023. A new Primary School is scheduled to open in Feb 2028 at Lake Treeby.
- Beach. Lake Treeby is just 10km from the beach
- Fitness. Cockburn Aquatic and Recreation Centre (ARC) has indoor and outdoor pools, fitness classes, swim classes, basketball, netball, volleyball, junior sports and futsal. Just nearby is a BMX track and dog park.
A Smart Positioning
Lake Treeby is designed for health & wellbeing. This vision was determined early on in the planning phase, with input from experts and consumers. It is being fulfilled by the way we are developing neighbourhoods, our recreation facilities and public open space, our beautiful lake area and 47% green space, plus our many and varied community initiatives.
The Lake
Our stunning lake has:
- A 327m lakeside boardwalk for people to walk or jog around the lake.
- A gentle water cascade
- An area of peace and wellness with a wooden exercise deck and open grass – suitable for stretching, meditation, pilates or yoga
- Shade structures with picnic tables
- Viewing decks
- Kickabout areas
- An adventure and nature play zone
- Bridges over water
- Informal log seats and seats of repose
- A chat corner with seating
- Parents corner with soft finishes and toddler balancing items.
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