Thirroul
Investment Score
78
/100
AI Intelligence Summary
Thirroul is a premium coastal suburb located 70km south of Sydney in the Illawarra region, offering an exceptional beachside lifestyle with strong transport connectivity to the city. With a population of 5,800 and median age of 42, the suburb attracts affluent professionals and families seeking a sea change without sacrificing urban accessibility. The property market has experienced robust growth, with median house prices reaching $1,350,000, driven by the suburb's coastal location, quality amenities, and direct rail link to Sydney. Thirroul Beach is a major drawcard for residents and visitors, providing excellent surfing and swimming conditions with patrolled areas. The community is well-educated with 42% holding university qualifications and a median household income of $95,000. Local amenities include boutique cafes and shops along Lawrence Hargrave Drive, quality schools, and strong community groups. The suburb benefits from low crime rates, excellent walkability, and proximity to both Royal National Park and the Illawarra escarpment. Investment prospects remain strong despite recent rapid growth, supported by ongoing demand from Sydney buyers and limited housing supply.
Strengths
- •Premium beachfront location with patrolled swimming and surfing beach
- •Direct train connection to Sydney CBD (90 minutes) via Thirroul Railway Station
- •Strong property price growth with median house prices at $1,350,000
- •Highly educated population (42% university educated) with above-average incomes
Opportunities
- •Growing demand from Sydney buyers seeking lifestyle change
- •Potential for unit development given coastal location and transport access
- •Tourism and short-term rental market growth
- •Infrastructure improvements in broader Illawarra region
Considerations
- •High property prices creating affordability barriers for first-time buyers
- •Limited housing stock with only 185 sales in the past 12 months
- •Dependence on single rail line for Sydney commuting
- •Limited major shopping and employment opportunities within the suburb
Property Market
$1.35M
+8.5% 1yr
$750K
+6.2% 1yr
$950K
$850/wk
$580/wk
32
1.8%
72.0%
Price Growth
| Type | 1 Year | 3 Year | 5 Year |
|---|---|---|---|
| House | +8.5% | +28.2% | +45.8% |
| Unit | +6.2% | +22.5% | +38.4% |
Rental Yields
House Yield
3.2%
Unit Yield
4.8%
Townhouse Yield
3.8%
Investment Scorecard
Demand/Supply Ratio: 1.80
Demand exceeds supply — favourable for sellers
Tax & Financial Intelligence
CPA-grade analysis for Thirroul at median house price
+8% surcharge
$850/wk
Negatively geared
Reduces taxable income
~$701/week
Based on 9.2% p.a. growth (from 5-year trend), 50% CGT discount, 39% MTR
5-Year Hold
10-Year Hold
Investor Quick Summary
Entry cost (stamp duty)
$56,640
After-tax yield
1.95%
Weekly holding cost
$701/wk
10yr CGT (est.)
$356,806
Estimates based on FY2025 NSW rates at median house price. Assumes 80% LVR, 6.5% interest rate, 39% marginal tax rate ($135K-$190K bracket). Individual circumstances vary. This is general information only and not personal financial advice. Consult your CPA before making investment decisions. Local Knowledge Pty Ltd — Registered Tax Agent.
Demographics
5,800
42
$95K
per annum
68.0%
45.0%
42.0%
4.2%
28.0%
Dwelling Mix
Lifestyle & Community
15
8
1
70.0 km
Nearest Station: Thirroul Railway Station
Beach-focused lifestyle with surfing, swimming, coastal walks, boutique dining, and easy access to natural attractions and Sydney.
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Data sourced from multiple sources. Last updated 29 March 2026.