Theresa Park vs Werombi: true annual running costs compared (2026)
Last updated July 2026 · council rates current NSW schedules, ATO 88c/km, Opal & Translink fares, AER electricity benchmarks
Theresa Park and Werombi are both Wollondilly rates (OLG suburbs, sitting 54.8 km and 59.2 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
Werombi runs $1,082 a year cheaper than Theresa Park, driven mostly by the commute. Over 10 years at 3% growth that gap compounds to about $12,404.
Over 10 years, Werombi costs about $12,400 less to run than Theresa Park — the same as paying $12,400 less for the home. It's the cost no listing shows you.
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Werombi
Annual cost breakdown
| Category | Theresa Park | Werombi | Difference |
|---|---|---|---|
| Council rates | $2,195 | $2,195 | - |
| Water & sewerage | $1,548 | $1,548 | - |
| Commute (driving) | $5,833 | $5,201 | +$632 |
| Commute (public transport) | $2,400 | $2,400 | - |
| Home insurance | $2,600 | $2,150 | +$450 |
| Body corporate (unit) | $2,100 | $2,100 | - |
| Total (driving) | $12,176 | $11,094 | +$1,082 |
| Total (public transport) | $8,743 | $8,293 | +$450 |
Green = cheaper. Commute: ATO 88c/km, 220 working days. Insurance AI-estimated; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Theresa Park | Werombi | Difference |
|---|---|---|---|
| House | $2,420 | $2,420 | - |
| Unit | $1,920 | $1,920 | - |
Estimated from AER residential benchmarks for each suburb's climate zone at 2025 rates (QLD 30c/kWh, NSW 33c/kWh incl. supply charge; unit ≈ 75% of a house). Get the free report for a breakdown by your exact number of occupants.
Cost breakdown chart
Annual cost breakdown — Theresa Park vs Werombi (2026-27)
What the numbers show
Werombi costs $1,082 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $12,404 in favour of Werombi.
The biggest single gap is commute costs at $632 per year. Werombi is 59.2 km from Sydney CBD, which drives higher annual driving costs at the ATO rate of 88c/km.
On public transport the gap is $450 per year, $8,743 from Theresa Park versus $8,293 from Werombi.
10-year cumulative cost projection
| Year | Theresa Park cumulative | Werombi cumulative | Difference |
|---|---|---|---|
| Year 1 | $12,176 | $11,094 | $1,082 |
| Year 3 | $37,635 | $34,290 | $3,345 |
| Year 5 | $64,644 | $58,900 | $5,744 |
| Year 10 | $139,584 | $127,180 | $12,404 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Theresa Park or Werombi cheaper to live in?
Werombi is cheaper to run by car at $11,094 per year versus $12,176 for Theresa Park, a difference of $1,082 annually. Figures cover council rates, water, commute (ATO 88c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Theresa Park and Werombi?
Annual council rates for a house are $2,195 in Theresa Park (Wollondilly rates (OLG) and $2,195 in Werombi (Wollondilly rates (OLG). Water and sewerage adds $1,548 in Theresa Park and $1,548 in Werombi. Both figures are the average residential rate reported to the Office of Local Government, uplifted by each council's IPART rate peg.
How does the commute cost compare between Theresa Park and Werombi?
Annual driving commute costs are $5,833 from Theresa Park and $5,201 from Werombi to Sydney CBD (ATO 88c/km). Public transport costs $2,400 from Theresa Park and $2,400 from Werombi.
What is the 10-year cost difference between Theresa Park and Werombi?
At 3% annual cost growth, Theresa Park costs a cumulative $139,584 and Werombi costs $127,180 over 10 years by car. The cumulative difference is $12,404 in favour of Werombi. Excludes purchase price, mortgage, and personal expenses.
Which of Theresa Park and Werombi is best to actually live in?
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Related comparisons
Sources: Wollondilly rates (OLG and Wollondilly rates (OLG rate data, water utility pricing (QLD: Queensland Urban Utilities / Unitywater; NSW: Sydney Water / Hunter Water), ATO 88c/km, and SuburbCost AI insurance estimates. Data updated July 2026.