20 Cox Street
Mandurah WA 6210
Six individually titled lots. A new two-storey townhouse on each. Walking distance to the train, the Forum, and the foreshore.
*Illustration only. Subject to change. Builder: WA Building Solutions Pty Ltd
Why Mandurah
Once a relaxed coastal holiday town, Mandurah has grown into Western Australia’s largest regional city, home to more than 99,000 residents with a population expanding at 3.82% annually — outpacing greater Perth. It combines genuine waterfront lifestyle with serious urban infrastructure: a major rail link, a 50m regional shopping centre, a thriving foreshore precinct, and a short-stay tourism economy that draws visitors year-round.
Seventy-two kilometres south of the Perth CBD, Mandurah is not a speculative market. It is a fully serviced regional centre with structural, enduring demand drivers.
Walkable to what matters
20 Cox Street sits at the centre of Mandurah township, within easy walking distance or a short drive of three key anchors:
Mandurah Train Station
Direct rail link to Perth CBD via the 71.4km Mandurah Line. A genuine commuter address for working tenants.
Mandurah Forum
66,200m² of premium retail anchored by David Jones, Coles, Woolworths, H&M and 200+ stores. 6.6M visits per year.
Foreshore & Coffee Strip
Boardwalk restaurants, cafés, Dolphin Quay Marina, the Performing Arts Centre, and Mandjar Bay itself.
Canals & Ocean Marina
Dolphin encounters, crabbing, kayaking, waterfront dining — year-round tourism drawcards underpinning Airbnb demand.
20 Cox Street (pin) — Foreshore & Marina precinct (left circle) | Mandurah Station (right, upper) | Mandurah Forum (right, lower)
Lot & build specifications
Six individually titled lots, each delivered as a two-storey, three-bedroom turnkey home under an HIA build contract with WA Building Solutions Pty Ltd. Each package involves purchasing the land, with the home constructed to completion — backed by a 10-year structural guarantee and a 6-month maintenance period.
| Specification | |
|---|---|
| Bedrooms | 3 |
| Bathrooms | 2 |
| Garage | 1 car (18m²) |
| Ground floor living | 36m² |
| Upper floor | 54m² |
| Total build size | 110m² |
| Land size | 130–137m² |
| Land cost | $250,000 |
| Build cost | $470,000 |
| Total package | $720,000 |
| Expected title registration | September 2026 |
| Completion (est.) | 12 months from Council Approval |
| Builder | WA Building Solutions Pty Ltd |
| Contract | HIA standard build contract |
| Structural guarantee | 10 years |
| Maintenance period | 6 months |
| Strata | TBA |
Floor plan — Lot 1 (137m² land)
Ground: 36m² living + 18m² garage | Upper: 54m² | 3 bed, 2 bath
Site plan — Lots 2–6: 130m² | Lot 1 (corner): 137m² | *Illustration only, subject to change
The investment case
Rental return
A new three-bedroom townhouse of this quality and location is expected to achieve approximately $650 per week in rent — above the Mandurah median weekly unit rent of $520, reflecting new-build standard, three-bedroom configuration, and proximity to the rail corridor and foreshore. This translates to an estimated gross yield of approximately ~4.69% on the $720,000 package price.
Vacancy rates across the Mandurah market are extremely low, with strong tenant competition and sub-month inventory. Rental pressure is expected to remain elevated as new construction continues to lag population-driven demand.
Capital growth
- Unit prices in Mandurah grew 20.25% in the 12 months to September 2025 (CoreLogic / YIP)
- House prices recorded a 23.66% gain across the same period
- REIWA forecast a further 15% unit growth through 2025–26
- Days on market averaging just 18–21 days — demand is structurally outpacing supply
- Population growth of 3.82% p.a. outpacing greater Perth, expanding the tenant and buyer base
Airbnb as a second income strategy
The Mandurah foreshore precinct is one of WA’s most active short-term rental markets. According to AirROI 2026 data, the market features over 300 active listings with the Mandurah Foreshore identified as a top-performing neighbourhood.
Despite a 28% increase in supply, nightly rates and total revenue both trended upward — demand is comfortably absorbing new inventory. Peak season is December (Christmas Lights, summer foreshore), with year-round support from boaters, fishers, retirees, business travellers and the annual Crab Festival.
Investors open to a flexible letting approach have genuine dual-income potential: long-term tenancy returning approximately $650/week when it suits, and short-stay management during peak periods.
New builds and negative gearing
The May 2026 Federal Budget introduced significant changes to Australian property tax. From 1 July 2027, negative gearing for residential property will be restricted to new builds only. Established properties purchased after 12 May 2026 will no longer qualify.
New builds remain eligible
As newly constructed properties delivered under an HIA build contract, each Cox Street townhouse is expected to qualify under the proposed new-build exemption — allowing investors to offset rental losses against personal income, maximise depreciation on brand-new fixtures and fittings, and retain flexibility on CGT treatment at the point of sale. These reforms are proposed and subject to Senate passage. Investors should confirm the implications with their own tax adviser.
- Full negative gearing — rental losses deductible against salary and other income (proposed)
- Maximum depreciation — brand-new fixtures, fittings and structure
- CGT flexibility — 50% discount or indexed cost base available at sale
- As the pool of negatively geared established properties diminishes post-2027, new-build supply may attract growing demand from investors
Under the proposed reforms, new residential builds are explicitly preserved as the vehicle through which negative gearing remains available from 1 July 2027. Investors should seek independent tax advice on how these changes apply to their specific circumstances.
Investment case summary
| Package price | $720,000 turnkey — Land $250,000 + Build $470,000. HIA build contract, WA Building Solutions Pty Ltd. Title expected September 2026. |
| Rental return | Estimated $650/week for a new build of this quality and location — equating to approximately 4.69% gross yield. Mandurah unit median is $520/week. Figures are indicative estimates only. |
| Capital growth | Mandurah units grew 20.25% in the 12 months to September 2025. Population growth of 3.82% p.a. outpacing Perth. REIWA forecast +15% units through 2025–26. |
| Airbnb potential | Average $265/night across the Mandurah market. Top 10% earn $436+/night. The Mandurah Foreshore is one of WA’s top-performing STR precincts. Dual-income strategy viable. |
| Location | Walkable to Mandurah Train Station, Mandurah Forum (66,200m²) and the foreshore coffee strip. All established and operational today. |
| Tax (proposed) | New builds expected to retain full negative gearing post-July 2027 under the Federal Budget reforms. Maximum depreciation. CGT flexibility at sale. Subject to Senate passage — seek independent advice. |
| Lifestyle | Australia’s Top Tourism Town. Dolphins, canals, Crab Fest, Christmas Lights, foreshore dining — enduring lifestyle demand underpinning both tourism and tenant appeal. |
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Disclaimer
All figures, projections, rental estimates, market data and financial information contained on this page are sourced from third-party providers including CoreLogic, REIWA, Your Investment Property Magazine and AirROI, and are accurate to the best of our knowledge at the time of preparation (June 2026). All figures should be used as a guide only. They are subject to change over time and may not reflect current market conditions at the time of reading.
Nothing on this page constitutes financial, investment, taxation, legal or any other form of advice, and it must not be construed as such. Rental return and capital growth figures are indicative estimates only and are not guaranteed. Prospective purchasers should conduct their own independent due diligence and seek qualified professional advice appropriate to their individual circumstances before making any investment decision.
Floor plans, site plans, renders and specifications are indicative only and subject to change without notice. Proposed negative gearing and capital gains tax reforms referenced herein are subject to Senate passage and have not yet been enacted into law. Invest Property West (ABN 20 669 757 331) accepts no liability for decisions made in reliance on the information contained on this page.