St Marys
Investment Score
74
/100
AI Intelligence Summary
St Marys is an affordable, multicultural suburb in Western Sydney, approximately 50km from the CBD. Known for its diverse community with significant Pacific Islander, Middle Eastern, and Asian populations, it offers excellent transport connectivity via the T1 Western Line and Great Western Highway. The suburb features predominantly detached housing with some townhouses and units, making it popular with first home buyers and investors seeking competitive rental yields. St Marys benefits from established infrastructure including St Marys Senior High School, local primary schools, the St Marys Rugby League Club as a community hub, and growing amenities along Queen Street. With planned infrastructure improvements as part of the Western Sydney growth corridor and proximity to the future Western Sydney Airport, the suburb presents strong growth potential while maintaining its family-friendly character and affordability compared to Greater Sydney.
Strengths
- •Excellent transport connectivity with direct train access to Sydney CBD
- •Affordable property prices below Sydney median
- •Strong multicultural community with established amenities
- •Competitive rental yields attractive to investors
Opportunities
- •Western Sydney Airport development boosting connectivity
- •Infrastructure upgrades planned for the region
- •Growing cafe and restaurant scene along Queen Street
- •Potential for property value growth as Western Sydney develops
Considerations
- •Lower median household income compared to Greater Sydney
- •Distance from Sydney CBD may limit employment options
- •Limited premium dining and entertainment options
- •Traffic congestion on major arterial roads
A decision, not just a search · St Marys
Does a promising suburb make this the right property decision?
No. Suburb data can help you shortlist, but it cannot establish the value, condition or suitability of a particular property. Compare buying, retaining your current property and waiting against your household cash flow, finance conditions and intended holding period.
Questions that could change the answer
- What would make this location unsuitable even if its median price rises?
- Could you meet the costs if income falls, the property is vacant or repairs are needed?
- Are you comparing a specific property with genuinely comparable sales—or only an area average?
Evidence to obtain—not yet verified here
- Comparable property evidence with transaction dates and relevant differences.
- Current loan terms, household commitments and a realistic cash-flow buffer.
- Property inspections, contract advice and ownership/tax advice where relevant.
Other options: Shortlist another property, retain what you own, reduce the budget or delay. Growth expectations alone are not a reason to proceed.
Next action: Ask a Property Advisor to connect the property evidence with your priorities, and identify the finance, tax or legal professional required for unresolved questions.
When to revisit: Revisit if the price, lending terms, inspection findings or household circumstances change.
General decision guidance—not a property assessment, personal recommendation or verified client result. Dates on surrounding market content apply to that content, not to checks on your property.
Take this question to a reviewThe question and suggested checks are prefilled for you to edit. No enquiry is sent until you submit and consent.
Property Market
$720K
+4.2% 1yr
$485K
+3.8% 1yr
$620K
$580/wk
$475/wk
42
2.1%
68.0%
Price Growth
| Type | 1 Year | 3 Year | 5 Year |
|---|---|---|---|
| House | +4.2% | +18.5% | +32.8% |
| Unit | +3.8% | +16.2% | +28.5% |
Rental Yields
House Yield
4.2%
Unit Yield
5.1%
Townhouse Yield
4.4%
Investment Scorecard
Demand/Supply Ratio: 1.40
Demand exceeds supply — favourable for sellers
Tax & Financial Intelligence
CPA-grade analysis for St Marys at median house price
Stamp Duty Estimate
Save $26,930
+8% surcharge
Negative Gearing Position
Wage offset available until 1 July 2027
An established purchase today falls under the 2026 reforms. From 1 July 2027, losses on established residential property can only offset residential rental income or residential capital gains — not your salary.
$580/wk
Negatively geared
Reduces taxable income until 1 July 2027
~$297/week
Land Tax Exposure
~60% of median price
Below threshold
Annual: $6,612
CPA Note: Land tax applies to your total NSW land holdings, not individual properties. Portfolio holders should aggregate all investment land values.
CGT Projection
Based on 6.6% p.a. growth (from 5-year trend), CPI indexation + 30% minimum rate, 39% MTR
5-Year Hold
10-Year Hold
Investor Quick Summary
Entry cost (stamp duty)
$26,930
After-tax yield
2.56%
Weekly holding cost
$297/wk
10yr CGT (est.)
$155,388
Estimates based on FY2025 NSW rates at median house price. Assumes 80% LVR, 6.5% interest rate, 39% marginal tax rate ($135K-$190K bracket). This calculator provides estimates for illustrative purposes only and does not constitute financial, tax, or investment advice. Results depend on assumptions that may not reflect your actual situation. Tax laws, interest rates, and market conditions change frequently. Always consult a qualified professional — such as a CPA, mortgage broker, or financial adviser — before making financial decisions. Local Knowledge Group of Companies provides integrated advisory through Local Knowledge (CPA), Local Knowledge Finance (Mortgage Brokerage), and Local Knowledge Property (Licensed Agency).
Demographics
11,500
32
$52K
per annum
58.0%
28.0%
22.0%
6.8%
48.0%
Dwelling Mix
Lifestyle & Community
25
8
1
50.0 km
Nearest Station: St Marys Station
Family-focused lifestyle with local sporting clubs, parks, growing dining scene, and community events. Good access to Penrith CBD for major shopping and entertainment.
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Data sourced from multiple sources. Last updated 11 April 2026.