Berowra Waters vs Cowan, true annual running costs compared 2026
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
Berowra Waters and Cowan are both Hornsby rates (OLG suburbs, sitting 35.7 km and 34.8 km from Sydney CBD respectively, and are commonly compared by buyers weighing up running costs within the same council area.
The two sit within $237 a year of each other to run, so running cost is a minor factor here. The decision comes down to schools, risk and lifestyle, all in the free report.
Over 10 years the gap between these two is about $2,700, about $5 a week, and most of it is the AI-estimated insurance line.
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Cowan
Annual cost breakdown
| Category | Berowra Waters | Cowan | Difference |
|---|---|---|---|
| Council rates Official, 2026-27 | $1,541 | $1,541 | - |
| Water & sewerage Official, 2026-27 | $1,548 | $1,548 | - |
| Commute (driving) Modelled, 2026-27 | $6,908 | $6,871 | +$37 |
| Commute (public transport) Modelled, 2026-27 | $2,400 | $2,400 | - |
| Home insurance Estimated | $2,350 | $2,150 | +$200 |
| Body corporate (unit) Estimated | $2,100 | $2,100 | - |
| Total (driving) | $12,347 | $12,110 | +$237 |
| Total (public transport) | $7,839 | $7,639 | +$200 |
Totals exclude electricity, estimated separately below. Green = cheaper. Commute: ATO 91c/km, 220 working days. Insurance estimated from ACCC premium rates; actual premiums vary. Council rates: average residential rate (NSW, IPART-uplifted).
| Dwelling | Berowra Waters | Cowan | Difference |
|---|---|---|---|
| House | $2,342 | $2,342 | - |
| Unit | $1,909 | $1,909 | - |
Estimated from AER residential benchmarks for each suburb's climate zone at 2026-27 regulated prices for each suburb's electricity network, including supply charge (AER Default Market Offer caps, or the QCA price in regional Queensland; unit ≈ 75% of a house). Get the free report for a breakdown by your exact number of occupants.
Cost breakdown chart
Annual cost breakdown, Berowra Waters vs Cowan (2026-27)
What the numbers show
Berowra Waters and Cowan differ by $237 a year by car, but $200 of that is the building insurance estimate rather than a published figure. On the sourced costs, council rates, water and the commute, the gap is $37, so neither suburb is named cheaper here.
The biggest single gap is home insurance at $200 per year. Berowra Waters carries high flood risk, which pushes estimated premiums higher.
On public transport the gap is $200 per year, $7,839 from Berowra Waters versus $7,639 from Cowan.
Where the difference actually comes from
- Council rates is identical at $1,541 a year.
- Water and sewerage is identical at $1,548 a year.
- Driving commute favours Cowan by $37 a year, $6,871 against $6,908.
- Building insurance favours Cowan by $200 a year, $2,150 against $2,350.
Both suburbs sit in the same council area, so the rates line is identical and none of the difference between them comes from council. What separates them is commute distance and the insurance band.
Flood risk is rated high in Berowra Waters against medium in Cowan, which feeds the insurance estimate. Fire risk is rated high in Cowan against medium in Berowra Waters, which feeds the insurance estimate.
10-year cumulative cost projection
| Year | Berowra Waters cumulative | Cowan cumulative | Difference |
|---|---|---|---|
| Year 1 | $12,347 | $12,110 | $237 |
| Year 3 | $38,163 | $37,431 | $732 |
| Year 5 | $65,552 | $64,294 | $1,258 |
| Year 10 | $141,545 | $138,828 | $2,717 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Berowra Waters or Cowan cheaper to live in?
Neither is named cheaper. Berowra Waters runs $12,347 a year by car and Cowan $12,110, but most of the $237 difference is the building insurance estimate rather than a published figure. On council rates, water and the commute, which are sourced, the gap is $37. Source: SuburbCost 2026 data.
What are council rates in Berowra Waters and Cowan?
Annual council rates for a house are $1,541 in Berowra Waters (Hornsby rates (OLG) and $1,541 in Cowan (Hornsby rates (OLG). Water and sewerage adds $1,548 in Berowra Waters and $1,548 in Cowan. 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 Berowra Waters and Cowan?
Annual driving commute costs are $6,908 from Berowra Waters and $6,871 from Cowan to Sydney CBD (ATO 91c/km). Public transport costs $2,400 from Berowra Waters and $2,400 from Cowan.
What is the 10-year cost difference between Berowra Waters and Cowan?
At 3% annual cost growth, Berowra Waters costs a cumulative $141,545 and Cowan costs $138,828 over 10 years by car. The cumulative difference is $2,717 in favour of Cowan. Excludes purchase price, mortgage, and personal expenses.
Which of Berowra Waters and Cowan suits you better?
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Sources: Hornsby rates (OLG and Hornsby rates (OLG rate data, water utility pricing (QLD: Queensland Urban Utilities / Unitywater; NSW: Sydney Water / Hunter Water), ATO 91c/km, and SuburbCost insurance estimates from ACCC premium rates. Data updated July 2026.