Killarney Heights vs Roseville Chase, true annual running costs compared 2026
Last updated July 2026 · council rates current NSW schedules, ATO 91c/km, Opal & Translink fares, AER electricity benchmarks
Killarney Heights (Northern Beaches rates (OLG) and Roseville Chase (Ku-ring-gai Council rates (IPART approved SRV, 29% in) attract comparison from buyers considering suburbs across different council areas at similar distances from Sydney CBD (10.3 km and 10.6 km).
Killarney Heights runs $501 a year cheaper than Roseville Chase, driven mostly by council rates. Over 10 years at 3% growth that gap compounds to about $5,743.
Over 10 years, Killarney Heights costs about $5,700 less to run than Roseville Chase. That's about $11 a week.
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Roseville Chase
Annual cost breakdown
| Category | Killarney Heights | Roseville Chase | Difference |
|---|---|---|---|
| Council rates Official, 2026-27 | $1,766 | $2,189 | -$423 |
| Water & sewerage Official, 2026-27 | $1,548 | $1,548 | - |
| Commute (driving) Modelled, 2026-27 | $3,135 | $3,213 | -$78 |
| Commute (public transport) Modelled, 2026-27 | $2,386 | $2,386 | - |
| Home insurance Estimated | $1,850 | $1,850 | - |
| Body corporate (unit) Estimated | $2,600 | $2,600 | - |
| Total (driving) | $8,299 | $8,800 | -$501 |
| Total (public transport) | $7,550 | $7,973 | -$423 |
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 | Killarney Heights | Roseville Chase | 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, Killarney Heights vs Roseville Chase (2026-27)
What the numbers show
Killarney Heights costs $501 less per year to run by car. Held over ten years at 3% annual cost growth, that gap compounds to $5,743 in favour of Killarney Heights.
The biggest single gap is council rates at $423 per year.
On public transport the gap is $423 per year, $7,550 from Killarney Heights versus $7,973 from Roseville Chase.
Where the difference actually comes from
- Council rates favours Killarney Heights by $423 a year, $1,766 against $2,189.
- Water and sewerage is identical at $1,548 a year.
- Driving commute favours Killarney Heights by $78 a year, $3,135 against $3,213.
- Building insurance is identical at $1,850 a year.
They sit in different council areas, so the rates line is set by two different councils. For NSW that figure is the average residential rate reported to the Office of Local Government, uplifted by that council's IPART rate peg.
Fire risk is rated high in Killarney Heights against medium in Roseville Chase, which feeds the insurance estimate.
10-year cumulative cost projection
| Year | Killarney Heights cumulative | Roseville Chase cumulative | Difference |
|---|---|---|---|
| Year 1 | $8,299 | $8,800 | $501 |
| Year 3 | $25,651 | $27,200 | $1,549 |
| Year 5 | $44,061 | $46,720 | $2,659 |
| Year 10 | $95,139 | $100,882 | $5,743 |
Assumes 3% annual cost growth. Excludes purchase price, mortgage, and personal expenses.
Frequently asked questions
Is Killarney Heights or Roseville Chase cheaper to live in?
Killarney Heights is cheaper to run by car at $8,299 per year versus $8,800 for Roseville Chase, a difference of $501 annually. Figures cover council rates, water, commute (ATO 91c/km), and home insurance. Source: SuburbCost 2026 data.
What are council rates in Killarney Heights and Roseville Chase?
Annual council rates for a house are $1,766 in Killarney Heights (Northern Beaches rates (OLG) and $2,189 in Roseville Chase (Ku-ring-gai Council rates (IPART approved SRV, 29% in). Water and sewerage adds $1,548 in Killarney Heights and $1,548 in Roseville Chase. 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 Killarney Heights and Roseville Chase?
Annual driving commute costs are $3,135 from Killarney Heights and $3,213 from Roseville Chase to Sydney CBD (ATO 91c/km). Public transport costs $2,386 from Killarney Heights and $2,386 from Roseville Chase.
What is the 10-year cost difference between Killarney Heights and Roseville Chase?
At 3% annual cost growth, Killarney Heights costs a cumulative $95,139 and Roseville Chase costs $100,882 over 10 years by car. The cumulative difference is $5,743 in favour of Killarney Heights. Excludes purchase price, mortgage, and personal expenses.
Which of Killarney Heights and Roseville Chase suits you better?
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Sources: Northern Beaches rates (OLG and Ku-ring-gai Council rates (IPART approved SRV, 29% in 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.